About this app
Krank is a rule-based logic puzzle game built around color switches and clean deduction. Each level gives you a set of switches and a list of rules. Cycle through colors, test ideas, and satisfy every rule at the same time to clear the puzzle. 200 free levels across Easy, Medium, Hard, and Extreme Optional bonus packs for 200 more levels Tap rules to cross them out as you reason Hint system when you get stuck Dark mode, haptics, and sound controls No timers. No pressure. Just smart, satisfying logic.
Latest release
What’s New
Restored the iOS 26 requirement while we resolve compatibility issues affecting earlier iOS versions.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 21, 2026 · 7:27 PM Free