[GuB-42]

If you can track "anything else", I guess you can track your drinking streak, your days without exercising, how long you spent without calling your mom, or whatever "good habit" you want to quit.

I don't think that's what most people are looking for though.

[badgersnake]

There are definitely apps to track your drinking, although mainly with the intent of encouraging moderation. Not everyone wants to stop drinking entirely, just drink a bit less.