An offline-first hiking companion app
Designed and shipped a cross-platform iOS and Android app with offline maps, route planning and community trails.
- Industry
- Outdoor & lifestyle
- Timeline
- 11 Weeks
- Platform
- iOS & Android
- Live website
- Private beta
4.8★
average app store rating
Strong reviews on both app stores from launch week.
120k
downloads in year one
Organic growth driven by community-shared trails.
11 wks
from kickoff to launch
From first workshop to both app stores.
2
app stores, one codebase
React Native and Expo kept the codebase unified.
Placeholder quote — the app works where phones usually don't, and our community loves it.
The challenge
Trailmate needed an app that worked where phones usually don't: deep in the mountains with no signal. It also had to feel fast and native on both platforms with a small budget.
Our approach
We chose React Native with Expo to ship one codebase to both stores, and built an offline-first sync engine so routes, maps and notes stay available without a connection.
- Vector map tiles downloaded per region, compressed for small storage use
- Background GPS tracking tuned for battery life
- Conflict-free syncing when the device reconnects
The outcome
The app launched on both stores in eleven weeks and quickly became a favourite in its niche, with strong ratings and organic growth driven by community-shared trails.