Gab - Gab is an ad-free social network dedicated to free speech.
Strava - The #1 app for runners and cyclists
Friendica - Decentralisation - Privacy - Interoperability
MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.
PixelFed - PixelFed is a federated image sharing platform, powered by the ActivityPub protocol.
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.