Route Spoofer is a published Android app on Google Play (100+ downloads), open source under MIT: github.com/Gegirhasut/route-spoofer. A developer and QA tool: draw a route on the map, set a speed, and the app plays a moving mock GPS location to the whole device, so location-based apps can be tested without leaving the desk.
How it is built: a Kotlin foreground service with an Android mock-location provider keeps emitting positions in the background; the route editor UI is built with Capacitor and JavaScript. Before release it was beta-tested by real testers on real devices through my crowdtesting platform QAProvider.
Stack: Kotlin, Android foreground service, Capacitor, JavaScript. Google Play: play.google.com/store/apps/details?id=com.routespoofer.app
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Published open-source Android app: draw a route, set a speed, and it plays a moving mock GPS location to the whole device. Kotlin service + Capacitor UI.
