The terms governing use of the app and its associated services.
Last updated: 5 August 2026
Version: 1.0
This is an English translation of the German "Nutzungsbedingungen". In case of discrepancies, the German version prevails.
The provider of the "Tennis Mentor" app is:
Sebastian Münz
Augsburger Str. 1
82194 Gröbenzell
Email: hello.tennismentor@gmail.com
These Terms of Service govern the use of the "Tennis Mentor" Android app, the website at https://www.tennismentor.net and the associated services.
The app can be used without registering. On first launch, an anonymous user account is created automatically, under which the data you enter is stored and synchronized. Registering later is voluntary; it links this existing account to an email address or a Google account without losing the data already stored.
The user agreement is formed when you press the button to start using the app on first launch (currently "Los geht's") and thereby accept these Terms of Service. The Terms of Service and the Privacy Policy can be reviewed beforehand via the links provided there.
The Google Play terms apply in addition to the download and provision of the app via Google Play. Mandatory statutory rights remain unaffected.
Tennis Mentor helps users document and reflect on tennis matches, training sessions, goals and game-related skills. Depending on the version, statistics, analyses and personalized suggestions may be offered. The specific scope of features follows from the current app description.
Individual content or suggestions may be generated automatically or with the help of artificial intelligence. AI-assisted features are identified as such. The results may be incomplete or incorrect and must be reviewed on your own responsibility. Tennis Mentor replaces neither a tennis coach nor medical or physiotherapeutic advice. No particular sporting success is owed.
Use is permitted from the age of 16. The service is directed exclusively at persons who have reached the age of 16; by giving the consent under section 2, the user confirms having reached that age. Users under 18 require the consent of their legal guardians where this is legally required.
No information is required for the anonymous user account under section 2. If the user additionally registers with an email address or via a third-party sign-in service, the following applies in addition:
Users retain their rights in their own content, in particular in match, training and reflection data.
For the term of the user agreement, the user grants the provider the necessary non-exclusive right to store, transmit and process this content insofar as this is required to provide, secure and synchronize the service and for analyses or suggestions requested by the user. Technical service providers may be used for this purpose.
The user is responsible for ensuring that their content is lawful and does not infringe third-party rights. Personal or confidential information about other people may only be entered with sufficient authorization. Information about opponents should be pseudonymized wherever possible.
The following are prohibited in particular:
In the event of violations, the provider may remove content, restrict access or suspend accounts insofar as this is necessary and proportionate. Where possible, the affected user is informed beforehand and given an opportunity to remedy the situation. This does not apply in urgent cases involving security, legal or abuse concerns.
Tennis Mentor is currently provided free of charge. No paid services or subscriptions are currently offered.
The provider may in future offer individual features or continued use for a fee, or limit the scope of the free version. Existing free use does not automatically become chargeable. Costs arise only after a separate, express order. Beforehand, the price, scope of services, term and cancellation conditions in particular will be communicated.
Separate, binding contractual terms apply to paid services, including the applicable statutory right-of-withdrawal notice. Mandatory consumer rights take precedence.
The provider endeavours to provide the service reliably but does not guarantee uninterrupted or error-free availability. Maintenance, security measures, third-party disruptions or other circumstances that cannot reasonably be controlled may affect the service.
Necessary updates, including security updates, are provided within the scope of the statutory obligations.
Features may be changed, restricted, replaced or discontinued for valid technical, legal, security-related or economic reasons. This applies in particular where development, maintenance, hosting, AI or support costs become disproportionate, or where required third-party services cease to be available or become significantly more expensive. Material adverse changes will be communicated in good time and in the form prescribed by law. Mandatory user rights remain unaffected.
The app, software, design, trade marks, texts, graphics and other proprietary content are legally protected. Any use beyond the intended use of the app requires the provider's consent or a statutory permission.
Open-source components are subject to their respective licences. The corresponding notices are provided within the app or on a page designated for that purpose.
Information on the processing of personal data is set out in the Privacy Policy at https://www.tennismentor.net/privacy-en.
The user agreement runs for an indefinite period.
The user may end the agreement at any time and without notice by deleting their account. The following routes are available:
Merely uninstalling the app ends its use but does not delete the data stored on the provider's servers and does not terminate the user agreement. Deleting the account is required for that. Details of the scope and timing of deletion are set out on the "Account and Data Deletion" page at https://www.tennismentor.net/delete-account-en.
For as long as Tennis Mentor is offered free of charge, the provider may terminate the user agreement with 30 days' notice and discontinue the service in whole or in part. This applies in particular where continuing the service is no longer reasonable for the provider as sole developer and operator for personal, technical, organizational or economic reasons, or where the service is to be offered on a paid basis only in future.
The right to extraordinary termination for good cause remains unaffected on both sides. Good cause exists for the provider in particular in the event of a serious or repeated breach of these Terms of Service. Where reasonable, a warning with an opportunity to remedy the situation is given beforehand.
In the event of compelling legal reasons, significant security risks, uncontrollable technical failures or the short-notice loss of indispensable third-party services, the service may be restricted or discontinued at shorter notice or, if necessary, immediately.
Users will be informed of a planned discontinuation as early as possible. Where provided for by law, the provider will make user content available on request to the extent prescribed. Beyond that, an opportunity to back up data beforehand will be given where technically possible. Rights arising from services already paid for remain unaffected.
The provider is liable without limitation:
In the event of slightly negligent breach of material contractual obligations, liability is limited to the foreseeable damage typical for this type of contract. Otherwise, liability for slight negligence is excluded to the extent permitted by law.
Mandatory consumer, data protection and defect rights remain unaffected. The limitations of liability also apply for the benefit of the provider's legal representatives and vicarious agents.
The user is liable under the statutory provisions for damage caused by culpable unlawful use or by culpably unlawful user content.
The provider may propose changes to these Terms of Service where there is a valid reason, for example due to changed legislation, security requirements, technical developments or new features.
Material changes will be notified in good time. Where consent is required, they take effect only upon express consent. Silence does not constitute consent vis-à-vis consumers.
German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, this choice of law applies only insofar as it does not deprive them of the mandatory protection of the state of their habitual residence.
The statutory places of jurisdiction apply to consumers. For merchants, legal entities under public law or special funds under public law, the exclusive place of jurisdiction is, to the extent legally permissible, the provider's place of business.
Should any provision be or become invalid, the remaining provisions remain effective. The statutory provisions take the place of the invalid provision. A reduction preserving validity to the detriment of consumers is not intended.
Support and legal enquiries: hello.tennismentor@gmail.com