Privacy Policy — DeepQuran

• Last updated: April 30, 2026

DeepQuran ("the app", "we", "us") is a Quranic linguistic analysis tool published by Ahmed Alla Eddine Ouared. This policy explains what data the app handles and how.

TL;DR

• *We do not run any server. The app does not collect, transmit, or store any of your data on our infrastructure.
• *Everything stays on your device. Personal dictionary, bookmarks, study notes, settings, and reading position are saved locally in app storage only.
• *Your AI API keys never reach us. They are stored in your device's secure storage (Keychain on iOS, EncryptedSharedPreferences on Android via expo-secure-store) and sent directly from your device to the AI provider you chose.

What data is involved

Stored locally on your device only

• Personal dictionary (words you validated): saved via AsyncStorage
• Personal verse translations / recompositions: saved via AsyncStorage
• Study notes and AI analysis results: saved via AsyncStorage
• Bookmarks: saved via AsyncStorage
• Reading position (last surah and verse): saved via AsyncStorage
• App settings (theme, font size, language, reciter): saved via AsyncStorage
• Streak / progression statistics: saved via AsyncStorage
• Audio cache (offline recitations): saved on device file system, capped at 500 MB with automatic eviction

Stored in your device's secure storage

• AI API keys (Groq, Gemini, Claude, OpenAI): stored in Keychain (iOS) or EncryptedSharedPreferences (Android). Never written in plaintext.