支払いクエスト

Contains ads
Content rating
Everyone
100+
Downloads
Content rating
Everyone
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About this app

Discover the optimal solution for paying with coins through a game!

Optimize your daily spending with this brain-training math game that parents and children can enjoy together. Improve your financial calculation skills while playing and acquire useful payment techniques! This is an educational and entertainment app that lets you learn in a game-like manner.

Target Users

・Parents interested in their elementary school children's math education
Even children who get bored with drills (such as Kumon) can engross themselves in improving their calculation skills with this game! Enjoy financial education at home.

・Adults who enjoy logic puzzles and number games
Recommended for those who enjoy math games like Math King, Sudoku, one-stroke puzzles, and brain training games like BrainWars and Peak. Perfect for a quick brain teaser to use in your spare time!

Key Features

・Real-time scoring to understand payment efficiency
The efficiency of your payment method is instantly displayed based on the number of coins used and the amount of change you receive! The more coins you use correctly, the higher your score.

・Algorithm suggests optimal solutions
Our unique algorithm calculates the best coin combination and suggests payment methods with the minimum number of coins and change in real time. You can always get hints for the "optimal solution," so you can think for yourself and improve efficiency!

・History check & improvement hints
Past payment history is saved and analyzed for feedback. Each time you play, you'll receive "better payment methods" (examples of correct answers), so your payment skills will improve the more you play. You'll see at a glance which coins you should have used next.

Real-life benefits

・Slim down your wallet – Say goodbye to a wallet full of coins! Optimal payment habits mean you don't need to carry extra coins.

・Improve math skills – Children can have fun while developing their mental arithmetic skills and financial sense, helping them with math studies. Adults can also experience the benefits of everyday calculation skills and brain training.

・Smart checkout – Make smart payments at stores. For example, you can master expert techniques like paying 433 yen when your bill is 378 yen and getting one 50 yen coin and one 5 yen coin in change through the game! You'll be able to minimize your change without panicking at the register and smartly.

So, you too can become a master of paying with coins today! This app is both educational and entertaining, and you can have fun while learning the optimal way to pay. Download it now and start learning like a game!
Optimize your daily spending with this brain training and math game that parents and children can enjoy. Improve your money calculation skills while playing and learn payment techniques that will be useful in real life!
Updated on
Jul 24, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location and Device or other IDs
  • This app may collect these data types
    Device or other IDs
  • Data is encrypted in transit

What’s new

API レベルのバージョンアップ
Content rating
Everyone
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App support

About the developer
浅井 賢一
asai@ajag.jp
都筑区茅ケ崎南1丁目1−1 シティテラス横濱仲町台弐番館 206 横浜市, 神奈川県 224-0037 Japan