UMA Abacus
UMA Abacus Summary
UMA Abacus is a mobile Android app in Education by Zhu Shuihua. Released in Nov 2019 (6 years ago). It has about 525+ installs Based on AppGoblin estimates, it reaches roughly 47 monthly active users . Store metadata: updated Jan 13, 2026.
Recent activity: 34 installs this week (63 over 4 weeks) showing exceptional growth View trends →
Store info: Last updated on Google Play on Jan 13, 2026 .
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App Description
UMA Mental Arithmetic - 大成心算 UMA, The Best Dual Hand Abacus Institute.
UMA Mental Arithmetic(大成心算) is a profession dual-hand abacus mental arithmetic institute headquartered in Singapore. We developed the innovative phone/tablet based digital abacus to help students to learn faster and better. With our break-through methodology, almost all of the students can master the skills of dual-hand abacus successfully. We integrated the mechanisms of dual-hand abacus into the phone and tablet devices which makes learning easy and fun. To install for all platforms, please navigate to http://uma.sg/apps to install the version compatible with your devices.
To Join UMA, call use +65-67596978 or email us at zhushuihua@yahoo.com.
Our Address: Block 845 Yishun Street 81 #02-180 S760845
Our website: http://www.uma.sg