Find My - Find My can help you locate your devices and your friends and family.
Prey - Prey is the simplest and most reliable solution for tracking, data protection & management for Windows, Mac, and mobile devices. Track with precise location, wipe, reset and secure devices across all platforms.
Cocospy - A Most Reliable Phone to Track cell phone location, Monitoring App for Parental Control.
PhoneTrack - Nextcloud app to create tracking sessions to display phones position in real time and export activity to gpx.
Wheres My Droid - Ever lost your phone and you go to call it to listen for the ringer and remember its on silent mode?
iLostFinder - iLostFinder is an anti-theft/lost app for iPhone and iPad.