The challenge app

is the challenge app

Doing stuff is hard. Spar makes staying motivated a piece of cake.


Frequently asked questions
pot $515
Run two miles
1x per day, for 2 weeks
5 penalty per miss

Fun video check-ins

Share your progress with the community — and prove you did it! — with fun video check-ins.

Miss a check-in?
Pay the pot.

Spar keeps you motivated because you have skin in the game — putting money on the line really works. And the winners claim the pot!

Do it together

Chat with other players in the challenge lobby — learn, meet new people, and cheer each other on!