Daria — Privacy Policy
Effective date: July 31, 2026
This policy explains what data the Daria app collects, why, and what your rights are. Short version: we collect the minimum needed to make the app work and to understand how it is used; we never sell your data.
1. Data we collect
| Data | Why | Where it lives |
|---|---|---|
| Onboarding answers (target language, spoken language, trip date, level, goals, daily-practice choice, first name and avatar if you enter them) | To build and personalize your learning plan | On your device; synced to your account only if you sign in |
| Learning progress (completed scenes, stars, streak, review schedule) | So the app works and your progress survives a new phone | On your device; synced to Firebase (Google) if you sign in |
| Account identifiers (Firebase user ID; email and name from Apple/Google sign-in) | Authentication and progress sync | Firebase Authentication / Cloud Firestore (Google) |
| Usage analytics (screens viewed, funnel steps, purchases started/completed, app errors) | To understand where the app helps or loses people, and to fix bugs | PostHog, hosted in the European Union |
| Purchase state (subscription active or not) | To unlock Premium | Apple / RevenueCat |
We do not collect your precise location, contacts, photos or health data. Payment details are handled entirely by Apple — we never see your card.
2. What we do not do
- We do not sell or rent your personal data.
- We do not show third-party ads.
- We do not use your data for cross-app tracking.
3. Service providers
We rely on a small number of processors to run Daria: Apple (distribution and payments), Google Firebase (authentication, progress sync, audio hosting), RevenueCat (subscription management) and PostHog EU (product analytics). Each receives only what it needs for its role.
4. Retention
Local data stays on your device until you delete the app. Synced data is kept while your account exists. Analytics data is retained by PostHog per our project settings and is not tied to your name unless you signed in.
5. Your rights
Depending on where you live (including under the GDPR), you may have the right to access, correct, export or delete your personal data. Email us and we will handle it: adamsjhn07@gmail.com. Deleting the app removes all local data; deleting your account removes synced data.
6. Children
Daria is not directed at children under 13, and we do not knowingly collect personal data from them.
7. Changes
Material changes to this policy will be posted at this address with a new effective date.
8. Contact
See also our Terms of Use.