Motiv Ring - A fitness tracker you can truly keep on
Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.
Tep - Fitness tracker meets tamagotchi. Don't starve it!
MyTrails - Offline trail maps for Android (and online too!)
ŌURA Ring - Advanced sleep and fitness tracker
RunnerUp - RunnerUp - A open source run tracker inspired by Garmin 410, ...