Frogoku! - Brain Puzzle Games

Relax with Sudoku-style brain and logic puzzles. Place cute frogs, follow three simple rules, and explore watercolor cities at your own pace.

One frog in each row, column and colored pond. Frogs cannot touch, even diagonally.

300 LOGIC PUZZLES Explore ten chapters, from 4×4 to 9×9. Every puzzle is machine-verified to have one solution and a complete path of deduction. Placement checks visible rule conflicts. Experiment freely and undo at no cost.

A CITY A DAY Play a puzzle from a separate, fixed challenge bank with an original watercolor view of a real city and a short note from your frog. The first release includes 30 rotating cities. Everyone gets the same board and city by UTC date. Finish on the day to share a travel postcard without puzzle answers; revisit missed city introductions in the travel journal. Earn lotus coins for your first completion. The leaderboard ranks total lotus earned. Game Center is optional and shows an all-time board of real players. You can play without signing in.

HINTS IN TWO STEPS Start with the group and rule to consider, then reveal the specific cells. Each level includes three free hints. After those, an optional rewarded ad grants another hint. Undo and reset do not replenish used hints.

PEACEFUL POND An optional weekly, monthly, or yearly auto-renewable subscription removes all ads and unlocks unlimited hints while active. Every mainline and daily puzzle remains free to play. The first ten mainline levels have no interstitials; later interstitials are spaced between eligible level completions. Daily challenges have no interstitials. If an ad is unavailable, you can still keep solving.

WATERCOLOR COLLECTIONS Complete chapters to earn frog skins, backgrounds, decorations and fireflies. These rewards only change appearances.

COMFORTABLE CONTROLS Tap to mark, tap again for a frog, or drag to sweep marks. Choose two-button controls or use the large board with zoom, scrolling and explicit cell actions. Includes pond letters, light and dark appearances, VoiceOver and Reduce Motion support.

Puzzles and progress stay on your device and work offline. Purchases, ads and Game Center need a connection. There is no cloud sync; uninstalling may erase progress.

Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/