Comment by john_max_1

  1. Bonfire - HouseParty clone https://www.theverge.com/2019/5/3/18528317/facebook-bonfire-shutdown-group-video-chat-houseparty-clone
  2. Poke - Snap clone https://www.vox.com/2018/2/17/17022586/facebook-snapchat-poke-clone-mark-zuckerberg-evan-spiegel-billy-gallagher
  3. Slingshot - Snap clone https://www.theguardian.com/technology/2017/mar/10/snapchat-clones-facebook-copies

Note: Can't seem to find the one for IRL