Every other app counts something
Puffs, days, cigarettes not smoked, money saved, minutes of life back. That is what this whole category is.
Counting works for a lot of people and there are good apps that do it well. But every one of those numbers describes something that already happened. The day count tells you about yesterday. The money saved tells you about last month. One of them counts every puff automatically, whether your phone is locked or not.
A counter is a record. It is not something you open with the vape already in your hand.
Paddle Past counts nothing at you. There is no puff log, no day streak, no money saved, and nothing that shows you back what you did on a bad Tuesday. It keeps no record of your sessions at all, so there is nothing to put in front of you later.