Gio Hong

This application is to practice mental arithmetic. It will help yout brain health. https://play.google.com/store/apps/details?id=com.supersimple.mentalarithmetic Can select adding,subtracting,multiply and division. You can check your record after you solve 10 questions. This app also has history feature.

New update: version 1.2 Fix the /mile pace problem. Improve some text format.

This is a chat style tasks management application. very simple and dark mode supported. https://play.google.com/store/apps/details?id=com.supersimple.taskchat Screenshot images  

This app will show you sunrise and sunset time of today and next 5weeks. https://play.google.com/store/apps/details?id=com.supersimple.sunrisesunset

 This application is for testing some codes, playstore and admobs. A very simple app to count numbers. You can save and send the history via email or Google drive. https://play.google.com/store/apps/details?id=com.supersimple.SS_Counter