Lexis Privacy Policy
Last updated: October 17, 2026
Lexis is a vocabulary app. We collect only what the app needs to work. We do not sell your data, we do not show ads, and we do not track you across other apps or websites.
1. Who we are
Lexis is operated by Khalid Ait Baatag, based in Morocco, who is responsible for your data under this policy. You can reach us at the email address in section 15.
2. Using Lexis without an account
You can use Lexis as a guest. In guest mode, your words, collections, notes and progress are stored only on your device. Word lookups (section 5) and subscription checks (section 6) still work in guest mode, and they don't use an account.
3. Your account (Sign in with Apple)
If you sign in, Apple shares with us a unique account ID and, if you allow it, your name and email address. Apple may give us a private relay email instead of your real one. We use this only to keep your account and sync your data.
4. Your learning data
When you are signed in, we sync the following so you don't lose it:
- The name you choose in Lexis
- Saved words, collections, custom words and notes
- Your daily words and your learning progress for each language
- Practice results
- Your app settings, such as learning language
This data is stored with our database provider, Supabase, on servers in the European Union (Ireland).
5. Word lookup
When you look up or add a word, including a word you share into Lexis from another app, the word and its language are sent to our server on Amazon Web Services (AWS) in the United States. There, an AI model writes its definition, examples and synonyms. We send only the word and its language, not your name, email or account details.
6. Subscriptions
Payments are handled by Apple. We never see your card or payment details. We use RevenueCat to check whether you have an active subscription. RevenueCat receives an anonymous app user ID and your purchase history from Apple.
7. Data that stays on your device
- Notification times and reminders (scheduled on your device)
- Widget content
- Pronunciation audio (generated on your device)
8. Service providers
- Supabase: database and account storage
- Amazon Web Services: word lookup
- RevenueCat: subscription status
- Apple: sign in and payments
These providers process data only to provide their service to us, not for their own purposes.
9. Where your data is processed
Your synced data is stored in the European Union. Word lookups (AWS) and subscription checks (RevenueCat) are processed in the United States. These transfers are protected by the providers' standard safeguards, such as the European Commission's Standard Contractual Clauses.
10. How long we keep your data
We keep your synced data for as long as your account exists. When you delete your account, we delete it from our servers. Word lookups are never linked to your account.
11. Deleting your account
You can delete your account anytime in the app. This deletes your synced data from our servers and disconnects Lexis from your Apple Account. Deleting your account does not cancel your subscription. To cancel, go to Settings → Apple Account → Subscriptions on your iPhone.
12. Your rights
You can ask us to access, correct, export or delete your data. Email us and we will reply within 30 days. If you are in the European Union or the United Kingdom, you also have the right to complain to your local data protection authority.
13. Children
Lexis is not made for children under 13, and we do not knowingly collect their data.
14. Changes
If we change this policy, we will update the date at the top of this page.
15. Contact
Questions? Email support@lexisapp.me