Tandem announced the mobi would be supported on Android on 10 Nov, 2025:
Is anyone using the mobi with Android?
A limited release is expected to start in December 2025, followed by commercial availability in early 2026. Once available, the Tandem Mobi Android app will be downloadable from the Google Play Store on compatible smartphones
I have Android but not a compatible (so I can’t see it in the GPS).