價格：免費
檔案大小：12 MB
版本需求：系統需求：iOS 9.0 或以後版本。相容裝置：iPhone、iPad、iPod touch。
支援語言：英語
This is an educational application. The application contains classic mode, speed mode, infinite mode, you can choose different difficulty modes to challenge according to your needs. We hope that this application can help you exercise your logical thinking skills and improve your memory. Join us as soon as possible, let us start the journey of the challenge!
