Case study
Nant Gwrtheyrn: an offline-first trail and Welsh learning app
Client: Nant Gwrtheyrn Nant Gwrtheyrn is a Welsh heritage village and language centre in a valley on the Llŷn Peninsula in North Wales.
Overview
An iOS and Android app published on the App Store and Google Play, credited jointly to Nant Gwrtheyrn and Tinkr Creative, that guides visitors through the village's nature and history trails. It surfaces points of interest, local history and Welsh language content along the way, and was developed in close collaboration with the Nant Gwrtheyrn heritage centre.
The challenge
Nant Gwrtheyrn sits in a remote valley where mobile signal is unreliable. An app that needs a data connection to show the next waypoint or a Welsh phrase would be of little use to the people walking the trails.
The solution
We built the app offline-first, so trails, maps and content are fully available without a data connection. Visitors choose English or Cymraeg on first use, then pick a tree trail or a history trail, view each route on an interactive map with points of interest, and learn Welsh words and phrases as they explore.
Performance and resilience
- Offline-first: trails, maps and content are fully available without a data connection.
- Maps and content can be downloaded in advance for use without an internet connection.
Outcomes
- Digital Project of the Year, Computing Digital Technology Leaders Awards (2026)
- Digital Resilience Initiative of the Year, Computing Digital Technology Leaders Awards (2026)
Screenshots
See the Nant Gwrtheyrn app page for store links and screenshots.