The main idea is that most habit trackers help after relapse, but cravings happen before that. Quit All has an SOS mode with a timer, GIFs/prompts, streak tracking, relapse logging,
  savings, milestones, danger-time stats, and iOS widgets.

  YouTube demo:
  https://www.youtube.com/watch?v=qwNK4rqOY88

  App Store:
  https://apps.apple.com/us/app/quit-all-break-every-habit/id6760978934

  Website:
  https://quit-all.com