Do you have certain bad habits like nail biting or hair pulling that would you like to shed? Liv by HabitAware might help. It is a smart subconscious-behavior tracker and trainer that reminds you when you are doing things you don’t want to. The device learns the habits you want to stop, visualizes your behavior, and suggest ways to fix things.
You can use it for up to 8 behaviors. Its vibration zone and intensity can be customized. More information is available here.