36 squares. Fill the whole card by Day 8. Sign in to your tile once and your card follows you across phones, laptops, and browsers. Tap a square to mark it. Tap the + to add proof (a photo or a witness sign-off). Proof is optional, but it stacks bragging rights.
Without signing in, your marks only save on this device. Sign in with your name + personal code to sync everywhere.
July 2026