Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
Whystle - Get an alert when products you use are recalled.
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Product Haunt - Browse the Product Hunt graveyard 👻
OwnTracks - Cross-platform location sharing
Product Hunt Real or Fake - Guess which products are real and which are jokes