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SanatanApp — Hindu Devotional App

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React NativeExpo SDK 52+expo-avexpo-sqlitereact-i18nextReact NavigationAdMob
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SanatanApp — Hindu Devotional App interface screenshot
📸Live Application Interface

Problem

Devotional users in India juggle 5+ separate apps for Chalisa, Gita, Aarti, Ramayan, and Mahabharat. Most are ad-heavy, poorly designed, and lack multi-language support.

Business Impact

500M+ Hindus use smartphones daily for devotion. Existing apps are fragmented and ad-heavy. SanatanApp consolidates all devotional content into one premium, private, offline-capable experience.

System Approach

  • React Native + Expo SDK 52+ for cross-platform Android build
  • Bundled JSON content for Hanuman Chalisa (40 verses), Bhagavad Gita (18 chapters, 700 verses), and 5+ Aartis
  • expo-av for streaming audio from public domain sources (Ramcharitmanas katha, Mahabharat parvas)
  • expo-sqlite for local bookmarks, favorites, reading progress, and daily sadhana streak tracking
  • react-i18next for 5-language support (Hindi, English, Sanskrit, Tamil, Telugu)
  • Bottom-tab navigation with Home, Library, Player, and Settings screens

Key Decisions & Trade-offs

  • No backend — all data on-device for privacy and offline capability
  • JSON-bundled texts over API fetching — keeps APK small (~15MB) and works without internet
  • Audio streaming over bundling — keeps APK size down, leverages free public domain recordings
  • AdMob banners only on Home/Library — never during audio playback or verse reading
  • Devanagari-first typography with Noto Sans Devanagari in saffron color for authentic feel

Current Status

Design spec and implementation plan complete. Core screens designed: Home, Library/Collection, Verse Reader, Audio Player, Settings. Content architecture finalized.

Roadmap

  • Complete React Native scaffold with Expo SDK 52+
  • Bundle Hanuman Chalisa and Bhagavad Gita Chapter 1 JSON content
  • Implement Verse Reader screen with Hindi/English toggle
  • Add audio streaming with expo-av for Ramcharitmanas
  • Daily sadhana tracker with streak counter
  • Play Store release

What I'd Improve Next

  • Add offline audio downloads for devotees without reliable internet
  • Consider iOS build once Android is validated
  • Add push notification reminders for morning verse and evening aarti

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