Summarus app for iPhone and iPad

4.0 ( 540 ratings )

Finance Education
Developer: Andrew Eremchuk

0.99 USD

Current version: 1, last update: 8 years ago
First release : 23 Feb 2010
App size: 1.38 Mb

Simulates use of the ancient calculating system that originated in China. Simply move the “beads” on the abacus depicted on your iPhone screen, and math is made easy!