SanatanApp — Hindu Devotional App

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

Explore More

• MyFinancial — Personal Financial Advisor — Financial planning in India is fragmented across banks, insurance, and tax documents.
• PropCheck — AI Property Trust Score for India — Indian property buyers lose lakhs to fraudulent listings on Magicbricks, 99acres, Housing.
• StellarMIND — Chat-to-SQL with RAG — Business users need to query databases without knowing SQL.
• ClinicAI — WhatsApp AI Clinic Assistant — India has 12 lakh+ small clinics running on phone calls and paper diaries.
• MicroItinerary — AI Travel Planner — Travel apps optimize for proximity and ratings.
• SynFlow — Enterprise Intelligence Platform — Private deal networks rely on manual introductions and spreadsheets.
• FinBaby (Jama) — Personal Finance Tracker — Indian middle-class families track expenses across UPI apps, bank statements, and paper notebooks.
• RetailOS — Multi-Tenant Retail SaaS — Indian kirana stores and small retailers use paper registers or basic billing software with no inventory tracking, no GST compliance, and no offline support.
• TripHive — Offline-First Collaborative Trip Planner — Group trip planning is fragmented across WhatsApp, Google Docs, Maps, Splitwise, and email.
• ScamRakshak — On-Device AI Scam Detector — Indians lose thousands of crores annually to digital scams via WhatsApp, SMS, and social media.
• PaisaGuard — Family Budget Survival App — Middle-class families worldwide track expenses inconsistently — UPI apps show transactions but don't enforce budgets.
• rohitraj.tech — Engineering work is often invisible.
• Reliability & Production Readiness — Load testing, observability, and API contracts.
• Open Source Repos — Browse the source code behind these projects.