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Case study · iOS · Android

HelloBible

Interactive study companion · Our role: Lead React Native Developer (Full Lifecycle)

The problem

The product team wanted a Bible companion that feels like a conversation rather than a reader: AI chat that answers in real time, daily devotionals, quizzes and guided reading plans, on both iOS and Android, with subscriptions paying for it.

What we built

We built the app from scratch and owned the full lifecycle. The Expo codebase ships through EAS Build with over-the-air updates, so fixes reach users without waiting for store review. AI answers stream in through REST APIs and cloud functions, Firebase handles authentication, real-time Firestore sync and server logic, in-app subscriptions are native store billing, and OneSignal powers push notifications.

Results

  • Live on the App Store and Google Play
  • 100K+ installs on Google Play (public listing band, Oct 2026; covers the whole product)
  • Over-the-air update pipeline for fast fixes between store releases
  • Streaming AI chat, devotionals, quizzes and reading plans in one app

Install figures are public Google Play listing bands and describe the whole product, not our contribution alone.

“One of the best dev I ever worked with”
Upwork review · HelloBible engagement

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