GuppiPrivacy Policy
Last updated October 8, 2026
Guppi is made by Peak Apps Studio (Doruk Çetin, individual developer). This policy explains what happens to your information when you use the Guppi app for iOS and Android and this website.
The short version
We don’t collect any personal data. There is no account, no analytics, no advertising and no tracking. Your tanks, water tests, reminders, livestock and journal stay on your device.
Notifications
Reminders are local notifications scheduled on your device. No push server is involved and nothing is sent to us.
Services the app talks to
| Service | When | What is sent |
|---|---|---|
| Apple App Store / Google Play | When you buy, restore or open the app | Handled by Apple or Google under their privacy policies. We don’t receive payment details; the app only asks the store whether you have Pro. |
| Expo (app updates) | When the app starts | A check for bug-fix updates with technical details such as the app version, the platform and a random installation ID, not your data. If an update fails to load, a short technical error report is sent so it can be fixed. |
| Websites you open | Only when you tap a link | They open in the browser; the app sends them nothing. |
Children
Guppi is not directed at children under 13 and we don’t knowingly collect information from them.
Your choices
Because we hold no personal data about you, there is nothing for us to access, correct, sell or delete. You can erase everything in the app (Settings > Erase all data) or by deleting the app.