With this mental arithmetic app, you can practice calculations using a virtual abacus with features like auto test and speech support. Includes auto test mode, speech options, sound effects, and volume controls.
AppRecs review analysis
AppRecs rating 2.5. Trustworthiness 49 out of 100. Review manipulation risk 47 out of 100. Based on a review sample analyzed.
★★☆☆☆
2.5
AppRecs Rating
Ratings breakdown
5 star
0%
4 star
50%
3 star
0%
2 star
0%
1 star
50%
What to know
⚠
Questionable review patterns
47% review manipulation risk - some review patterns appear unusual
⚠
Mixed user feedback
Average 2.5★ rating suggests room for improvement
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Review quality concerns
60% of sampled 5-star reviews are very short
About KoAbacus - 주판, 주산, 암산
KoAbacus 1.0.54 - Korean Abacus & Mental Arithmetic
The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.
* button function
6,5,4,3,2,1 : - positional number
+ , - , x , / : the four arithmetical operation & new number genernation
9, 8, 7, 6, 5 : bounds
stat & end : result
* Menu Button
- Auto Test : Count, Delay
- Speech : Start, End, +, -, *, /
- Sound : Click Sound
* Start Button LongClick - Abcus Clear
* Menu Button LongClick - Volume Control (4.0 ~)
* [-] [x] [/] button LongClick - Auto Mental Arithnmetic
The abacus is a calculating tool that was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Africa, and elsewhere.
* button function
6,5,4,3,2,1 : - positional number
+ , - , x , / : the four arithmetical operation & new number genernation
9, 8, 7, 6, 5 : bounds
stat & end : result
* Menu Button
- Auto Test : Count, Delay
- Speech : Start, End, +, -, *, /
- Sound : Click Sound
* Start Button LongClick - Abcus Clear
* Menu Button LongClick - Volume Control (4.0 ~)
* [-] [x] [/] button LongClick - Auto Mental Arithnmetic
KoAbacus - 주판, 주산, 암산 Screenshots
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Reviews for KoAbacus - 주판, 주산, 암산
malti shinde
6/10/2025
best app😄🤗
Ali Shaikh
3/4/2021
Good and best 🌷🌷🌷💐💐💐💐💐💐😺😺😺😺
