SumX app for iPhone and iPad

4.8 ( 448 ratings )

Education
Developer: Katsuhiko Yao

Free

Current version: 2.0.8, last update: 5 months ago
First release : 11 Feb 2024
App size: 22.93 Mb

The innovative game of enhancing numerical and computational skills by selecting two numbers that sum up to 10 (or any other number).