Comparison

Calculator & abacus training vs Flash Mental Math

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calculator & abacus training

Enhance your math skills with calculation drills for abacus and calculator. Customize training sessions for addition, subtraction, multiplication, and division, with advanced options available after purchase. Challenge yourself in a mode where problems increase in difficulty.

Highlights
  • Abacus and calculator training
  • Customizable training modes
  • Addition, subtraction, multiplication, division
  • Progress tracking
  • Challenge mode with increasing difficulty
  • Up to 5-digit calculations
Features
Read full description

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.

About

Flash Mental Math

Practice mental arithmetic with various difficulty levels and custom modes. This app serves as a brain training tool to enhance calculation skills.

Highlights
  • Mental arithmetic practice
  • Easy, normal, and difficult modes
  • Customizable modes
  • Brain training
  • Calculation skill improvement
Features
Read full description

Flash mental arithmetic practice app In addition to the easy, normal, and difficult modes, there are also custom modes. It can also be a brain training to improve mental arithmetic

Screenshots

Calculator & abacus training4 screens
Flash Mental Math3 screens

Verdict

The call

The clearest difference is rating: Flash Mental Math at 4.7 against Calculator & abacus training's 1.0. Flash Mental Math also leads on in-app purchases (none vs 1) and ratings volume (19 vs 1). Calculator & abacus training's advantage is iOS requirement (12.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculator & abacus training sells 1 one-off in-app purchase. Flash Mental Math asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flash Mental Math holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Flash Mental Math has 19 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of Calculator & abacus training's written reviews are positive against 100% of Flash Mental Math's.

UpkeepUpdate frequency

Calculator & abacus training ships an update every 2 months, Flash Mental Math every 3 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator & abacus training versus Flash Mental Math: the parameters behind the verdict, then further details
ParameterCalculator & abacus trainingFlash Mental Math
PriceFreeFree
Rating1.0 (1 ratings)4.7 (19 ratings) — better
Positive reviews85.7% of reviews100.0% of reviews — better
Number of ratings119 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.6
Further details — not scored
Size20 MB14 MB
Age rating4+4+
Developerkenji kiuchiRyouhei Azuma

Customer experience

Calculator & abacus training

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Flash Mental Math

All ratings19 ratings
Positive94.7%
Neutral0.0%
Negative5.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Calculator & abacus training

One-time1
  • Remove Ad & All function release$9.99
None

Flash Mental Math

No in-app purchases

Questions

Is Calculator & abacus training free?
Calculator & abacus training is free to download, with in-app purchases available.
Is Flash Mental Math free?
Flash Mental Math is free to download, with no in-app purchases.
Which has better reviews, Calculator & abacus training or Flash Mental Math?
Flash Mental Math is rated higher. Calculator & abacus training averages 1.0 out of 5 from 1 ratings, while Flash Mental Math averages 4.7 from 19 ratings.
Do Calculator & abacus training or Flash Mental Math have ads?
Both Calculator & abacus training and Flash Mental Math show ads.
Which is updated more often, Calculator & abacus training or Flash Mental Math?
Calculator & abacus training ships an update every 2 months, and Flash Mental Math every 3 months. Most recently, Calculator & abacus training was updated on November 2, 2026 and Flash Mental Math on November 3, 2026.

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