Shule Learning
An offline-first revision app serving 40,000 secondary students, built to work on entry-level Android phones with no data bundle.
- Client
- Shule EdTech
- Timeline
- 12 weeks
- Platforms
- Android, iOS
Licensed placeholder image — replace with real project photography or a product screenshot before launch.
- Play Store rating
- 2.8 to 4.6Play Store rating
- Active students
- 40kActive students
- Install size
- -70%Install size
- Week-four retention
- 3.9xWeek-four retention
The challenge
Shule's first app assumed a constant connection and a modern phone. Most of their students had neither. Retention collapsed after week one and the store rating sat at 2.8.
What we built
A rebuild around offline-first architecture: content packs download once over WiFi, all quizzing works without a connection, and progress syncs when the phone next sees a network.
How we approached it
- 1Device audit across the actual handsets students were using
- 2Content packaged into downloadable subject bundles under 8MB each
- 3Local-first progress tracking with conflict-safe background sync
- 4Install size cut from 74MB to 22MB
- 5Staged rollout with crash monitoring on low-end device profiles
They tested on the phones our students actually own. That one decision turned the whole product around.
Technology
- Flutter
- SQLite
- Firebase
- Node.js
Commercial outcome
Week-four retention up 3.9x after rebuilding offline-first
Read the case study
Tell us what is not working
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