Terms of Service

General Terms of Use of the Darteer Application

Introduction

This document constitutes the General Terms of Use of the Darteer mobile application (the "Terms"), which is used for digital evaluation of dart throws using algorithms and artificial intelligence (the "Service" or the "Application"). The Service is provided by Darteer.ai, s.r.o., with its registered office at Korunní 2569/108, Vinohrady, 101 00 Prague 10, ID No.: 21801142, registered in the Commercial Register maintained by the Municipal Court in Prague under File No. C 405862, established and existing under the laws of the Czech Republic (the "Provider"). These Terms govern the contractual relationship between the Provider and you as the user of the Application (the "User").

By using the Application or creating a user account, you agree to these Terms, including our Privacy Policy, and you undertake to comply with them. If you do not agree with the Terms or the Privacy Policy, please do not use the Service. The Provider may, to a reasonable extent and at its discretion, amend these Terms from time to time; you will be informed of significant changes (see Article 10 below).

Local differences and specifics of the individual jurisdictions in which the Service is provided may be reflected in local addenda to the Terms (the "Addenda"). The provisions of the Addenda take precedence over the regulation contained in these Terms and, to the extent the regulation overlaps, replace it. Relationships not governed by the Addenda are governed by these Terms and the relevant generally binding regulations.

If the User is, in the contractual relationship, in the position of a consumer under the generally binding legal regulations applicable in their place of habitual residence or seat, nothing in these Terms limits or excludes any rights that belong to them as a consumer under the relevant legal regulation.

1. Definitions

For the purpose of these Terms, the following definitions apply:

Provider – the entity specified in the Introduction that operates the Darteer Application.
User – any natural person who meets the eligibility conditions under Article 2 and uses the Service based on a contractual relationship with the Provider.
Service / Application – the Darteer software available for mobile devices via Google Play and Apple App Store, which enables digital evaluation of dart throws using algorithms and artificial intelligence. The Application may be used in the Free Local Mode without creating an account, in which game data is stored locally on the User's device, and also in the mode with a Darteer Account, which allows the use of cloud synchronization, online play, leaderboards, friends, the user portal, and other Online Features.
Subscription – paid access to the Service for a time interval chosen by the User, purchased through Google Play or Apple App Store payment systems.
Connected Device – a mobile device paired with your own that simultaneously records the dartboard.
Camera Data – visual and telemetric information obtained from the device's camera(s) when recording the dartboard.
Free Local Mode – a limited mode of using the Application without creating a Darteer Account. In this mode, the Online Features are not available and game data is stored only locally on the User's device, unless these Terms or the Privacy Policy expressly provide otherwise.
Darteer Account – a user account created in the Application or through the Provider's related interface, which is necessary for using the Online Features.
Online Features – features of the Application requiring a Darteer Account and an internet connection, in particular cloud synchronization, online play, leaderboards, friends, the portal, real-time audio/video transmission, and other features designated in the Application as online features.
Local Evaluation – processing of the image of the dartboard directly on the User's device for the purpose of recognizing the throw and calculating the score, without sending photographs or video recordings of the dartboard to the Provider's servers.
Training Photos – photographs or images of the dartboard voluntarily provided by the User to the Provider on the basis of separate consent for the purpose of developing, training, testing, validating, and improving the Application's detection model.
Diagnostic Data – technical data on the operation of the Application, in particular error and crash reports, performance data, device type, operating system version, Application version, and technical data related to the operation of the detection model, processed for the purpose of ensuring the security, stability, and functionality of the Application.
Product Analytics – optional measurement of the use of the Application, in particular interactions with features, screens, and settings of the Application, carried out only on the basis of the User's separate consent.
Cloud Data – data stored or synchronized through the Provider's server infrastructure in connection with a Darteer Account and the Online Features, in particular nickname, email address, subscription or purchase data, game and statistical data, and data about friends, leaderboards, and online play.
Online Audiovisual Transmission – a temporary real-time transmission of an audio/video stream between participants of an online game for the purpose of playing or watching a match, which the Provider does not, by default, record, store long-term, or use for training the detection model.

2. Registration Conditions and User Eligibility

The Service may only be used by natural persons who meet the conditions below. By using the Service, you represent and warrant that:

Minimum age and legal capacity: you are a natural person over 16 years of age and you have full legal capacity to perform all legal acts related to accepting and fulfilling these Terms, including the Privacy Policy (in some countries a minor may require the consent of a parent or legal guardian). The Service is not intended for persons under 16.
Accuracy of information: all information you provide when registering or using the Service is true, accurate, and complete, and not misleading. If your information changes, you will continuously update it so that it remains true and current.
No prohibition on using the Service: your use of the Service is not prohibited by any applicable legal regulation. You are not a person barred by a public authority from using similar services, and you are not a person located in a country or subject to a jurisdiction that would prevent you from using the Service.
No prohibition on access: the Provider has not previously removed or restricted you in the Service due to violation of the Terms or the Privacy Policy. If you previously had access that was blocked or canceled due to rule violations, you may not create new access without the Provider's consent.

If you cease at any time to meet any of the requirements above, you are obliged to immediately stop using the Service and cancel your Subscription (see Article 9). The Provider is entitled to verify your identity, age, and other facts listed above at any time (for example by requesting a copy of an identity document or by another suitable method) and, upon discovering or reasonably suspecting that you do not meet the Terms, may suspend or terminate your access.

Creating a Darteer Account is not a condition for using the Free Local Mode. The use of the Online Features, in particular cloud synchronization, online play, leaderboards, friends, and the portal, is however conditional upon creating a Darteer Account and the User logging in.

3. Description of the Service, Technical Requirements, and Permitted Use

Upon camera activation, the Application automatically detects darts on the dartboard, calculates the score achieved, and keeps a throw statistics log. By default, throws are evaluated by Local Evaluation directly on the User's device. In this mode, the Provider does not, without the User's separate consent, receive photographs or video recordings of the dartboard for the purpose of evaluating throws or training the model. The accuracy of evaluation depends in particular on the quality of lighting conditions, device settings, the placement and mounting stability of the device, and the quality of the dartboard shot. The Provider does not guarantee 100% accuracy of evaluation.

The Free Local Mode may be used without creating a Darteer Account. Game data created in this mode is stored locally on the User's device and the Provider may not have access to it. Loss, damage, or replacement of the device, uninstalling the Application, or deleting local data may lead to loss of this data unless it has been synchronized through the Online Features.

To use the Online Features, it is necessary to create a Darteer Account, log in, and have a stable internet connection. The Online Features may include in particular cloud synchronization of game and statistical data, online play, leaderboards, friends, the portal, and real-time audio/video transmission between participants of an online game.

The User is obliged to ensure, for both their own and any Connected Device:

a mobile device with a supported version of the operating system listed in the Apple App Store or Google Play,
even and adequate lighting of the dartboard,
firm and secure mounting of the device so as to prevent vibrations, falling, or damage to the device,
a stable internet connection to the extent necessary for using the Online Features, synchronization, subscription verification, updates, diagnostics, Product Analytics, if enabled, or the voluntary sending of Training Photos.

Failure to meet these conditions may lead to a reduction in the accuracy of evaluation, for which the Provider bears no responsibility.

The User must not use the Application in a manner that violates applicable legal regulations, the rights of third parties, or these Terms. In particular, it is prohibited to:

decompile, reverse engineer, or otherwise attempt to obtain the source code of the Application,
interfere with the operation of the Provider's servers or the network to which the Application is connected,
use the Application in combination with hardware or software modifications that may affect the correctness of measurement,
use the Application for any commercial rental or to provide the Service to third parties without the Provider's consent.

The Application is intended for capturing the dartboard, not persons, faces, private spaces, or other content unrelated to evaluating the throw. The User is obliged to set up the device so that the dartboard is primarily in the frame and so that there is no unauthorized interference with the privacy of third parties. If other persons may appear in the frame, the User is obliged to ensure that their use of the Application is in accordance with legal regulations and the rights of those persons.

4. Subscription and Payments

Form of providing the Application: The Application is available in a free version with a limited scope of features and in an extended version in the form of a paid Subscription. Prices and types of Subscription are listed in the interface of the relevant app store. The Subscription renews automatically until the User cancels it in the settings of their Google Play or Apple App Store account no later than 24 hours before the end of the current period. Failure to pay or an unsuccessful payment attempt may lead to suspension of your access to the paid features of the Service.
Immediate provision of the Service: A Subscription represents a digital service that is provided with your prior express consent immediately after purchase. By purchasing a Subscription, you expressly request and agree that the provision of the Service begins immediately, before the expiry of the withdrawal period, and at the same time you acknowledge that you thereby lose the right to withdraw from the contract within the 14-day period. After activation of the Subscription, the option of withdrawal and requesting a refund for the remaining part of the 14-day period cannot be used.
Change of Subscription price: The Provider reserves the right to adjust Subscription prices. You will be informed of a proposed price change through the Apple App Store/Google Play at least 30 days before it takes effect, or directly in the Application. If you do not agree with the new price, you may cancel the Subscription before the effective date of the change; the paid Subscription is not refunded.
Operation of the Service and changes: The Provider develops the Service and may in the future add, remove, or modify features. The characteristics of the Application may change over time and, in the event of a change within an already-paid Subscription period, no right to compensation arises. A temporary limitation of certain features (e.g. maintenance) does not constitute a breach of contract if the Service as a whole is functional. The Provider further reserves the right to discontinue offering the Subscription as such in the future or to discontinue the operation of the Service entirely (see Article 9). In the event of permanent discontinuation of the Service, already-paid Subscriptions will be adequately resolved (e.g. proportional refund of unused payments).
Fulfillment of tax obligations: The User acknowledges that they are solely responsible for the fulfillment of any tax obligation toward the relevant tax authority, if such an obligation were to arise directly for the User from the purchase of a Subscription. The Provider bears no responsibility for the User's tax obligations and does not provide tax advice.

5. License to the Application

The Provider grants you a limited, personal, non-exclusive, non-transferable, and revocable license to install and use the Application on your mobile device solely for the purposes of evaluating dart throws for your personal use (not for commercial purposes). All rights to the Application, its content, and the artificial-intelligence algorithms belong to the Provider.

If the User, on the basis of separate voluntary consent, provides the Provider with Training Photos, the User thereby grants the Provider a free, non-exclusive, territorially unlimited authorization to use, process, modify, analyze, annotate, and incorporate them into data sets for the purpose of developing, training, testing, validating, and improving the detection algorithms and models of the Application. This authorization is granted for the duration of the purpose of processing under the Privacy Policy. This does not affect the User's rights under personal data protection regulations, in particular the right to withdraw consent to the processing of personal data in the manner stated in the Privacy Policy.

6. Privacy and Personal Data Protection

Protecting your personal data and privacy is a priority for the Provider. The Provider processes Users' personal data in accordance with applicable legal regulations, in particular Regulation (EU) 2016/679 (GDPR), Act No. 110/2019 Coll., on Personal Data Processing, these Terms, and the Privacy Policy.

By default, the recognition of throws and evaluation of the score takes place by Local Evaluation directly on the User's device. In this mode, photographs and video recordings of the dartboard are not sent to the Provider for the purpose of evaluating the throw or training the model.

The provision of Training Photos for developing, training, testing, validating, and improving the detection model is voluntary and takes place only on the basis of the User's separate opt-in consent.

The Provider may process Diagnostic Data necessary to ensure security, stability, error correction, crash prevention, and performance improvement of the Application. The Provider configures diagnostics so as to minimize the processing of personal data to a reasonable extent and so that the diagnostic tools do not, by default, include photographs, video recordings, or audio recordings of the User.

Camera Data containing recordings of the faces of specific persons is automatically deleted; detection and recognition of faces is not performed.

Product Analytics, which measures the User's behavior in the Application beyond the necessary technical operation, is carried out only on the basis of the User's separate voluntary consent. Consent may be withdrawn at any time in the Application settings or by another method stated in the Privacy Policy.

The use of a Darteer Account and the Online Features requires the processing of Cloud Data. Within online play, a temporary real-time transmission of an audio/video stream, IP addresses, network metadata, the identity of the participant in the online room, and the access token to the room may take place. The Provider does not, by default, record, store long-term, or use these audio/video streams for training the detection model, unless expressly stated otherwise in a specific case and unless a corresponding legal basis is met.

The Provider does not use artificial-intelligence algorithms or automated decision-making, including profiling, that would have legal effects for the User or similarly significantly affect them. The Application's detection model serves solely to evaluate dart throws and is not used to assess personal aspects of the User, their behavior, or preferences, or to create user profiles for the purpose of automated decision-making.

The beta version of the Application may also, for the purpose of developing and improving the functionality of the Application, after the User's prior agreement, use data to analyze your device and Connected Device including in particular: device information, camera information, and Application error reports.

The Provider may send service notices related to the operation of the Service, in particular information about maintenance, security updates, changes to the Terms, or changes to the Privacy Policy, via email, push notifications, or in-app messages. Commercial communications are sent only in cases permitted by legal regulations and can be refused or revoked.

7. Liability and Warranty Limitations

This section contains limitations of the Provider's liability. Nothing in this section is intended to limit your rights that cannot be contractually excluded under applicable laws.

Provided "as is": The Service is provided "as is" and "as available", with regard to the Provider's capabilities. The Provider provides no warranties as to quality, freedom from errors, uninterrupted availability, or suitability for your expectations.
No guarantee of measurement accuracy: The Provider does not guarantee that the results measured by the Application will be entirely error-free, nor is it liable for damages caused by incorrect evaluation or improper use of the Application. You are yourself responsible for ensuring the best possible conditions for accuracy.
User responsibility during dart throwing: Throwing darts is an activity requiring increased caution. You carry out all sports activities connected with using the Application at your own risk. The Provider is not liable for injuries to persons or damage to property arising during dart throwing or during use of the Application.
Availability and freedom from errors: The Provider does not guarantee continuous availability or error-free operation. Temporary outages, delays, limitations, or errors may occur. The Provider strives to fix errors but does not guarantee their complete absence.
Compatibility: The Provider does not guarantee that the Service will work on all devices, operating systems, or browsers. It is your responsibility to use a current version of the Application and a suitable device with an internet connection.
Security and viruses: The Provider does not guarantee one-hundred-percent resilience against all cyber threats. Any material obtained through the Service is downloaded at your own risk. The Provider is not liable for damage caused by malware, phishing, unauthorized interference, or similar risks, unless the damage was caused intentionally by the Provider.
Technical faults and data loss: The Provider is not liable for damage arising from loss of the User's data or other content, if it occurs as a result of technical problems or interference by third parties and the Provider demonstrably made reasonable efforts to secure the data.
Third-party services: The Service may contain advertisements, links, or connections to websites or services of third parties. The Provider is not liable for the availability or content of these external websites or services.
Indemnification by the User: You undertake to compensate the Provider for damage and costs arising as a result of your unlawful conduct, breach of the Terms, or the rights of third parties, including reasonable legal representation costs.
Online Features and transmissions: The Provider does not guarantee continuous availability, quality, latency, or freedom from errors of the Online Features, including real-time audio/video transmissions. The quality of online play may depend on the User's connection, device, network settings, third-party services, and other circumstances beyond the Provider's control.
Content and conduct of Users: The User is responsible for ensuring that, when using the Online Features, they do not transmit, display, or share content that violates legal regulations, the rights of third parties, privacy, personality rights, or these Terms. The Provider is not liable for the conduct of other users, in particular for the fact that another participant of an online game makes their own recording of the screen, sound, or image in breach of these Terms or legal regulations.
Limitation of liability: To the maximum extent permitted by applicable legal regulations, the Provider is not liable for any indirect, incidental, consequential, punitive, or special damages, including lost profit, loss of data, unjustly obtained advantages, or damages arising from a conflict of contractual arrangements. The Provider's total liability for damages toward the User in connection with the use of the Service or these Terms shall not exceed the amount of 100 EUR.

The limitations under this article do not apply to liability that cannot be contractually limited or excluded under applicable legal regulations. No provision of this article limits the statutory rights of users as consumers under the relevant legal regulations.

8. User Support and Complaints

The Provider provides technical support via email at support@darteer.ai.

You must submit a complaint about the functionality of the Service without undue delay with a sufficient description of the problem and any logs/screenshots. If you are not satisfied with the way the complaint is handled, you may contact the relevant out-of-court dispute resolution body (see Article 11).

9. Termination of the Contract

This section describes the ways of terminating the contractual relationship and the consequences of such termination.

Voluntary termination on your part: If you no longer wish to use the Service, you have the right to cancel the Subscription at any time and thereby terminate the contract. Upon cancellation of the Subscription, the contract ends at the expiry of the paid period. Merely deleting or uninstalling the Application does not cancel the Subscription.
Termination or suspension by the Provider: The Provider reserves the right at any time (even without prior notice) to suspend, limit, or terminate your access to the Service or to cancel your account entirely, if it has a legitimate reason to do so, in particular breach of the Terms or the Privacy Policy, misuse of the Service, or legal grounds.
Consequences of termination: After termination of the contract, you cease to have access to the Service. The Provider may retain certain technical and operational records for the strictly necessary period, if this is needed to fulfill legal obligations or to protect legitimate interests. After cancellation of the account, no right to compensation for the unused Subscription period arises. Termination of the contract, cancellation of the Darteer Account, or uninstalling the Application may not automatically result in the deletion of data stored locally on the User's device; this data may need to be removed directly on the device or by uninstalling the Application depending on the operating system settings. Cloud Data associated with a Darteer Account will, after cancellation of the account, be processed, deleted, or anonymized in accordance with the Privacy Policy. This does not affect the Provider's right to retain data for the necessary period, if this is necessary to fulfill legal obligations, protect legal claims, ensure the security of the Service, or document granted consents.
Discontinuation of the entire Service by the Provider: The Provider may decide to discontinue the operation of the Service entirely. Active Users will be informed in advance and will be provided with instructions regarding any refunds or compensation. The Provider may also assign the obligations under this contract to another entity that will continue providing the Service.
Even after termination of participation in the Service, certain provisions of these Terms that are intended by their nature to survive remain in effect. In particular, the provisions on limitation of liability, exclusion of warranties, governing law, dispute resolution, and indemnification remain binding even after the expiry of the contract of which these Terms form a part. Termination of the account therefore does not mean that you would not be responsible, for example, for any damage caused by breach of the Terms during the time you used the Service.

10. Special Provisions for Apple App Store and Google Play

In connection with the use of the Application and the Subscription, the terms of the operator of the Google Play or Apple App Store service apply to you.

Application available in the Google Play service

If you are considered a minor in your country, you need the consent of a parent or legal guardian to use the Application and accept the Terms. If additional age restrictions apply to the use of specific content or features, you must comply with them.
In the event of problems with the performance of the Application, contact us. Google bears no responsibility for the support and maintenance of the Application.
If the Application is removed due to infringement of a third party's intellectual property rights or non-compliance with legal regulations and you paid the price for using the Application within one year before the day distribution through Google Play was stopped, we will refund the amounts paid at Google's request.

Application available in the Apple App Store service

The Terms govern solely the relationship between us and you, and Apple Inc. is not bound by these Terms in any way.
We are solely responsible for the maintenance and support of the Application to the extent set out in these Terms. Apple bears no responsibility for the maintenance and support of the Application.
It is our sole responsibility to address and, where applicable, settle any claims of yours or of third parties in connection with the Application, including claims arising from defective performance and compliance with legal regulations.
In the event that a third party raises a claim that the Application or its use infringes that third party's intellectual property rights, we are solely responsible for investigating such a claim, defending against it, and settling it.
By installing the Application, you declare that you are not using the Application from a country subject to a U.S. embargo and that you are not listed on any list of prohibited entities maintained by the U.S. government. Apple and its subsidiaries are third-party beneficiaries of these Terms and may require their compliance.

11. Dispute Resolution

In the event of dissatisfaction, a complaint, or a dispute arising in connection with the Service or these Terms, first contact the Provider's customer support at support@darteer.ai. The Provider will strive to resolve the problem to your satisfaction.

If you are a consumer and the dispute cannot be resolved directly with the Provider, you have the right to use out-of-court resolution of a consumer dispute. The bodies for out-of-court resolution of consumer disputes in the territory of the European Union, Iceland, and Norway are listed on the pages of the European Commission, which is regularly updated (https://consumer-redress.ec.europa.eu/dispute-resolution-bodies_en). All these bodies have been approved by the relevant national authorities as meeting the standards of quality, impartiality, and fairness under Directive 2013/11/EU on alternative dispute resolution for consumer disputes.

If you are not a consumer, or if out-of-court resolution of the dispute is not possible or is unsuccessful, disputes will be resolved by judicial means under Article 12 below.

12. Governing Law and Jurisdiction

All legal relationships between the Provider and the User arising on the basis of the Service or in connection with its use are governed by the legal order of the Czech Republic and the relevant consumer-protection regulations, excluding the conflict-of-law rules of private international law. In some countries (including countries of the European Union), however, laws apply that require contracts to be governed by the local laws of the consumer's country or that provide consumers with a higher level of protection. This provision therefore does not take precedence over those laws.

The courts of the Czech Republic have jurisdiction to resolve all disputes arising from these Terms or in connection with the use of the Service; unless, under binding legal regulations, you could choose to initiate legal proceedings in your country of residence, or unless we were obliged to initiate legal proceedings in your country of residence. The locally competent court will be the court competent according to the Provider's registered office, unless legal regulations establish the exclusive jurisdiction of another court for a particular dispute.

You may resolve disputes with the Provider only individually. You may not bring claims as a plaintiff or member of a class within a class, consolidated, or representative action. Class arbitrations, class actions, private attorney general actions, and consolidation with other arbitrations are not permitted. If this particular paragraph is found to be unenforceable, this arrangement will be considered severable from the other parts of the Terms and considered invalid (while the remainder of the Terms remains valid).

13. Final Provisions

Changes to the Terms: The Provider is entitled to unilaterally change or supplement these Terms at any time. You will be informed of a material change in advance via email or by notice in the Application. If you do not agree with the new wording, you have the right to stop using the Service and cancel the Subscription under Article 9.
Assignment of the contract: The Provider is entitled to transfer or assign the rights and obligations under the contract to a third party (e.g. in the sale of a business, transformation, or other reorganization). You will be notified of such an assignment. The User is not entitled, without the Provider's prior written consent, to transfer or assign their rights or obligations to a third party.
Severability clause: If any provision is found to be invalid, ineffective, or unenforceable, this does not affect the validity and effectiveness of the remaining provisions. The parties will replace it with a provision that most closely corresponds to the original purpose.
Force majeure: Neither contracting party is liable for delay or failure to fulfill obligations caused by events beyond reasonable control (e.g. natural disasters, fires, epidemics, power grid outages, state interventions, wars, cyber-attacks).
Language and interpretation: These Terms are drawn up in the Czech language. If a translation into another language is made, then in the event of a dispute over interpretation, the Czech version prevails. Article titles serve for clarity only.
Entire agreement: These Terms (including the Privacy Policy and any other terms referred to herein) represent the complete and sole agreement between the Provider and the User regarding the use of the Service.
Contact and delivery: For communication with the Provider, use the contact details listed in Article 8. The Provider may deliver notices through in-app notifications in the Application, email, or post to the User's last known address. An electronic communication is deemed delivered at the moment of demonstrable dispatch.
Effective date: These General Terms of Use take effect and become effective on 1 July 2026.