Frogoku! - Brain Puzzle Games
Sudoku Puzzle
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
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/
Ratings & Reviews
A cleaner, more comfortable puzzling experience:
• A simpler home screen and a larger, clearer board with bold white X marks.
• Faster completion screens and smoother progression to the next puzzle.
• All frogs, backgrounds and decorations are available to choose from in Settings > Appearance.
• A simpler welcome screen with easier access to the terms and privacy policy.
• New players receive an English default nickname.
The developer, zhijun li, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- zhijun li
- Size
- 49.7 MB
- Category
- Casual
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 61 more
- English, Afrikaans, Amharic, Arabic, Azerbaijani, Belarusian, Bengali, Bosnian, Cambodian, Catalan, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Kannada, Kazakh, Korean, Laotian, Lithuanian, Macedonian, Malay, Malayalam, Marathi, Mongolian, Nepali, Norwegian Bokmål, Persian, Polish, Portuguese, Punjabi, Romanian, Russian, Serbian, Simplified Chinese, Singhalese, Slovak, Slovenian, Spanish, Swahili, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Uzbek, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Peaceful Pond Weekly $0.99
- Peaceful Pond Monthly $2.99
- Peaceful Pond Yearly $19.99
- Copyright
- © 2026 Picva Studio
