Gadgetbridge - A free and cloudless replacement for your gadget vendors' closed source Android applications.
The Jackbox Party Pack 2 - Five new party games that can be played using mobile devices
fitbit - The Fitbit mobile app is for people who use Fitbit fitness trackers to keep track of their activity goals, food plans, and other fitness related things. Read more about fitbit.
Monikers - A dumb party game that respects your intelligence
Strava - The #1 app for runners and cyclists
Role - A storytelling party game