Help & Support.

A color fills the screen for a moment, then disappears. Rebuild it from memory: drag the hue ring to pick the color family, then the square to set saturation and brightness. The swatch beside the title shows your pick. Tap Lock it in when it matches what you remember.

Both colors are compared with CIEDE2000, a perceptual color-difference formula, and scored from 0 to 100: Perfect Match (95+), Very Close (85+), Close (70+), Off (45+) and Way Off. The score follows what the eye notices, so a difference you can't see barely costs you anything.

Classic gives you one color at a time with three tries. Sequence shows three to seven colors in a row to recall in order. Blitz puts sixty seconds on the clock — close matches win time back, misses cost you some. The Daily Challenge is five colors, the same for everyone on the same date.

The five colors are generated from the date itself, so every device produces the same set with no server involved. You get one attempt a day, and it counts as soon as the first color appears — leaving partway through uses it.

Finishing the Daily Challenge extends your streak. If you miss a day, a streak freeze covers it automatically — one freeze per missed day — so a single busy day doesn't reset your progress.

Yes. Turn on Settings → Colorblind-friendly colors and every color in a run stays distinguishable with red-green color blindness. The Daily Challenge always uses this mode.

No. Every mode, including the Daily Challenge, works offline. An internet connection is only used to load an optional ad or to make or restore a purchase.

Only if you ask for one. You get one Daily Challenge attempt a day, and you can watch a short optional video for a bonus retry. There are no banner ads and nothing interrupts a game.

It's a single one-time purchase, not a subscription. It unlocks every premium theme pack, including any added later, and gives you the bonus Daily retry without watching an ad. Themes are cosmetic only, so it never changes how the game plays.

Yes. There is no account and no analytics, and your scores, streaks and settings are stored only on your device. Optional ads are served by Google AdMob and purchases are verified by RevenueCat; the privacy policy explains exactly what they receive.