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Challenge your friends to burn 400 calories a day for days.

400 calories a day will change your life. Try it.

A 45-minute run. Or a short jog plus a long walk. Easy, but who actually does that every single day.

My dad. I watched him do it my whole life. Now he's 56 and in better shape than guys half his age.

That's why I had to build this simple 1-button app. Because being consistent, with friends, was always the key.

Made with 🧡 for Dad.