Mi Biblia
Mi Biblia is a fast, clean Bible reading app in Spanish — no ads, no account required, all data stored locally on the device. Built from scratch with React Native and Expo for full control over the experience. Open, read, annotate and share without friction.
Problem or idea
Mi Biblia is a fast, clean Bible reading app in Spanish — no ads, no account required, all data stored locally on the device. Built from scratch with React Native and Expo for full control over the experience. Open, read, annotate and share without friction.
Features
Complete Bible navigation
Browse books, chapters and verses with a clean editorial interface
Multiple translations
RV1909 included + 3 downloadable versions (BES, PDT, VBL) with download, switch and deletion
Advanced search
FTS5 engine (SQLite) with highlighting, recent searches and quick suggestions
Cross-translation favorites
Bookmark verses that persist regardless of which translation is active
Personal notes
Create, edit and delete annotations linked to specific verses
Reading progress
Track by verse, chapter and book with visual percentages
Audio TTS
Text-to-speech playback with auto-advance, configurable speed and pitch
Share verses
Plain text or 1080×1080 image optimized for social media with WhatsApp, Telegram and native share
Verse of the day
Deterministic algorithm — same verse for everyone on the same day — with a card on the home screen
Daily notifications
Configurable reminders with the verse of the day
Light, dark & auto themes
Follows system preferences automatically
Interactive tour
Guided onboarding for new users
Offline-first
All data lives in local SQLite, works without internet
What makes it different
Screenshots
Publishing notes
Built a complete offline-first mobile app with SQLite and FTS5 full-text search.
Implemented cross-translation favorites using canonical verse keys that persist across Bible versions.
Integrated device-native TTS for audio playback with auto-advance and configurable speed.
Created a visual verse sharing system generating 1080×1080 images optimized for social media.
Handled multi-translation management with download, switch and deletion flows.
Published to Google Play with privacy policy, store listing optimization and ongoing maintenance.