Bruno Lemos
Bruno Lemos reviewedTribe of FiveThe power of accountability to build better habits
 NeutralPros: 

Accountability works, so the idea is nice

Cons: 

Only 3 pre-defined challenges; can't invite friends

It would be better if I could write a custom challenge and invite my friends, instead of picking one of the three options and being matched with random people.

Bruno Lemos has used this product for one day.