Calculator & abacus training Downloads & RevenueCalculator & abacus training · App Store
Not in any tracked top chart right now.
Updated 11 Nov 2026 · rankings refresh through the day
Developerkenji kiuchi
CategoryEducation
PriceFree
Released
Rating★ 4.6 (20)
Version2.20
Age rating4+
First seen by us
23 Oct 2026
23 Oct 2026Calculator & abacus training update history & changes
Last change · 3 events since 28 Mar 2016Full timeline ↓Full timeline · 2 events in the last 12 months
- 🆕Calculator & abacus training first spotted by AppInsiderJapan (found via developer)
- 🆕Calculator & abacus training released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
4.6 ★
20 ratings
Measured
Calculator & abacus training on the App Store
App details
App ID
1092519812
Publisher
kenji kiuchi
On the store since
Mar 2016
10 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
21 MB
Also listed in
Business
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.6 ★
20 ratings
Measured
Ratings
20
Measured
About Calculator & abacus training
This app is calculation drill for calculation training.
You can training that Abacus(soroban) & calculator & math
·Training mode
You can create the training that fits your level.
Purchase before you can create two. After the purchase will be able to create six.
Training time is pre-purchase is 50 times, after the purchase will be saved 200 times,
You can see their growth condition.
Training can be set in the range of below.
Kind: addition, the addition subtraction MIX, multiplication, division
Number of digits: up to 5 digits (9-digits after purchase)
Number of lines: up to 5 lines (15-digits after purchase)
Number of Questions: up to 50 questions
・Challenge mode
Level goes up and to clear the problem within the 100 s.
Since the problem is more and more difficult, let's challenge to your limits.
You can training that Abacus(soroban) & calculator & math
·Training mode
You can create the training that fits your level.
Purchase before you can create two. After the purchase will be able to create six.
Training time is pre-purchase is 50 times, after the purchase will be saved 200 times,
You can see their growth condition.
Training can be set in the range of below.
Kind: addition, the addition subtraction MIX, multiplication, division
Number of digits: up to 5 digits (9-digits after purchase)
Number of lines: up to 5 lines (15-digits after purchase)
Number of Questions: up to 50 questions
・Challenge mode
Level goes up and to clear the problem within the 100 s.
Since the problem is more and more difficult, let's challenge to your limits.
Latest updates
2.20
bug fix.
