Privacy Policy
Paira cares about your privacy. This policy explains what we collect, why, and your rights.
Data we collect
- Account: when you sign in with Google or Apple we receive your name, email and avatar. No passwords are stored.
- Learning data: your sets, per-word correct/wrong history, game sessions, XP, streaks and league standing.
- Preferences: language, theme, sound and notification settings.
How we use it
Your data is used solely to run the app: saving progress, scheduling reviews, building league rankings and rendering your dashboard. We never sell your data.
Ads & cookies
Paira is ad-supported via Google AdSense, which may use cookies for personalized ads. See Google's ad policies. The one-time "remove ads" purchase removes ads and their cookies entirely.
Usage analytics
We use Google Analytics 4 to measure which pages are visited, which game modes are played, and how fast the site loads. When you are signed in, only your account id β an opaque identifier β is passed to Analytics, so one person on a phone and a laptop counts once; your name, email and study content are never sent. Measurement is for aggregate statistics, and once you delete your account that id maps to nobody.
Payments
Payments are processed by Lemon Squeezy; your card details never reach us. When a purchase completes, the amount and order number are sent to Google Analytics so we can see which visit produced the sale.
Notifications
Web push notifications are strictly opt-in and can be disabled in settings at any time.
Data deletion (GDPR)
Use "Delete my account" in settings to permanently erase your account and all data (sets, progress, game history, badges). This cannot be undone.
Contact
Questions: hello@example.com