ENGO Plus — a loyalty app for installers
A loyalty programme on the phone: installers scan ENGO products, collect points and exchange them for rewards.

Problem
ENGO Controls needed a loyalty programme for the installers who fit their products — on the phone, in several countries and languages. The client had no app design: we started from an idea, with no wireframes and no visual design.
What did we do?
- UI and UX design of the whole app — from user flows to a custom component set (buttons, cards, forms, navigation),
- a mobile app for iOS and Android: scanning product serial numbers (barcode and text recognition from the camera), an offline scan queue, points and a rewards shop (basket, delivery address, orders),
- a product catalogue with technical data, wiring diagrams, a download centre and a complaints form,
- news, promotions, training videos and training sign-ups,
- an API (ASP.NET Core, SQL Server), integration with the manufacturer’s CRM system, tests and automated deployments (GitLab CI, Docker),
- publication on the App Store and Google Play.
Result
The app is used in 11 countries and 4 languages (Polish, English, Romanian, Bulgarian).


