Terms of Use
Last updated: 23 October 2026
These terms govern your use of Yelkovan's apps. By downloading or using an app, you accept these terms and that app's terms addendum.
1. Who we are
The apps are provided by Yiğit Özdemir (Yelkovan; "we" in this document), an independent developer based in Türkiye. If you do not accept these terms, do not use the app. Rules specific to an app are in its terms addendum; where the addendum and these terms conflict, the addendum prevails for that app. The addenda are listed at the end of this page.
2. Licence
We grant you a personal, non-transferable, non-exclusive and revocable licence to use the app for personal, non-commercial purposes on devices you own or control. The app is licensed to you, not sold.
If you downloaded the app from the App Store, Apple's Licensed Application End User License Agreement (Standard EULA) also applies, and these terms supplement it. If you downloaded it from Google Play, the Google Play Terms of Service also apply.
3. Acceptable use
When using the apps, you agree not to:
- use cheats, automation or exploits to gain scores, rankings or in-game items,
- reverse engineer or modify the app, or distribute a modified version, except where the law allows it,
- try to gain unauthorised access to our servers or to other users' accounts, or disrupt the service,
- use usernames or content that impersonate others, contain insults, hate, harassment or sexual content, or include someone's personal information,
- use the app for any unlawful purpose.
4. Accounts
Some apps let you sign in with your Apple or Google account if you choose to. You are responsible for activity on your account and for the security of your device. You can delete your account at any time; how to do so is in the app's addendum.
5. User content
Content you enter in an app, such as a username, may be visible to other users depending on the feature. You keep your rights to that content and give us a free, worldwide permission to display it in the app. We may remove or change content that breaks these terms without notice.
6. In-app purchases and virtual items
- Apple or Google takes payment for in-app purchases, and each purchase is subject to that store's terms. Prices are shown in the store before you buy.
- In-game currencies and virtual items have no real-money value; they cannot be exchanged for cash or transferred to another account or person. They give you a licence to use them in the app, not ownership.
- Refund requests go to the store you bought from (Apple or Google), which decides under its own policy.
- For digital content delivered immediately, the right of withdrawal may not apply to the extent the law allows. Your statutory rights as a consumer are not affected.
7. Advertising
Our free apps may show ads. Ads are served by third-party ad networks, and advertisers are responsible for the products and services they advertise. How advertising uses data is described in the app's privacy addendum.
8. Changes to the service
To improve the apps, we may add, change or remove features, reset leaderboards, or end an app's availability or its online services. We will try to give reasonable notice before shutting down online services.
9. Intellectual property
The apps and their content (code, graphics, sounds, text, names and logos) belong to us or our licensors. No rights pass to you other than the licence expressly granted in these terms.
10. Disclaimer
The apps are provided "as is" and "as available". To the extent the law allows, we give no express or implied warranty that the apps will be uninterrupted, error-free or compatible with every device.
11. Limitation of liability
To the extent the law allows, we are not liable for indirect damages or for loss of data or profit arising from use of the apps. Our total liability for any app is limited to the amount you paid for that app in the past 12 months. These limits do not apply to intent, gross negligence or liability that the law does not allow to be limited, and they do not affect your mandatory rights as a consumer.
12. Termination
You can end this relationship at any time by deleting the app and your account. If you seriously breach these terms, we may suspend or end your access to your account or to online features.
13. Governing law and disputes
These terms are governed by the laws of the Republic of Türkiye. The courts and enforcement offices of Türkiye have jurisdiction over disputes. Consumers may apply to Consumer Arbitration Committees and Consumer Courts within the statutory limits. If you live in another country, you keep the rights given to you by that country's mandatory consumer protection laws.
14. Changes
We may update these terms from time to time. The current version is published on this page with the date at the top. If you keep using the app after a change, you accept the updated terms.
15. Contact
App-specific addenda
Each app's own details are in its addendum, which is read together with this document.
Astronova
Telveli