Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
PINGTAG - The emergency contact QR tags for your car and personal items
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
AirTag - Apple's answer to Tile, for finding your devices
OwnTracks - Cross-platform location sharing
Tile - Track your lost items