Comparison

Abacus Trainer vs FlashAnzan

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

Head to head
About

Abacus Trainer

Features
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Train your brain to calculate without a calculator. Abacus Trainer teaches mental arithmetic the Japanese soroban way - slide real beads first, then learn to see the abacus in your head. 160 levels across 8 grades take you from your very first bead to full Flash Anzan speed, one small step at a time. THREE WAYS TO PRACTICE - Show All: every number on screen at once. The gentle way in. - Flash Anzan: numbers flash one by one and get faster each level. Builds working memory, focus and calculation speed. - Auditory Anzan: nothing to read. Numbers are spoken aloud and you calculate purely by ear. INTERACTIVE VIRTUAL SOROBAN Slide the beads with your finger on a real 5-bead soroban. Guide markers show what each rod is worth, and a free sandbox lets you build any number you like. Answer on the abacus itself or on the keypad - whichever trains you better. A CURRICULUM THAT ACTUALLY RAMPS - Addition first, subtraction from Grade 2, decimals from Grade 7. - Number chains grow from 3 numbers up to 12; values from 1 digit to 3. - Flash speed tightens from 2.0 seconds down to 0.4 seconds per number. Every level is at least as hard as the one before it, so there are no difficulty cliffs - just steady progress. MULTIPLY AND DIVIDE ON THE BEADS Step-by-step lessons show every bead move for multiplication and division on the soroban, then short practice sets let you try each shape, from 2 digits by 1 up to 3 digits by 2. BUILD YOUR OWN DRILL Custom Mode lets you set everything: addition and subtraction, multiplication or division, number of digits, rows, question count, flash speed, negatives and decimals. Ideal for competition prep or for drilling the one thing you keep getting wrong. PROGRESS YOU CAN SEE Accuracy, answer times, questions answered, best runs and unlocked badges - per grade and over time. Watch your average answer time drop week after week. COLLECT COMPANION CATS Level up to unlock and customise your own cat companion. Cozy, calm visuals with a dark theme make long practice sessions easy on the eyes, and the whole app stays suitable for all ages. WHO IT IS FOR Kids starting soroban or abacus class. Students training for mental arithmetic and speed-math competitions. Parents looking for screen time that actually teaches something. Adults who want to keep their brain sharp and add faster than they can reach for a phone. Practice runs offline, so a train ride or a waiting room is a training session. Free to download, supported by ads. One optional purchase removes the ads for good - every level, every mode and every cat is there either way, and nothing is locked behind a payment. Available in 8 languages including English, Indonesian, Spanish, Portuguese, Japanese, French, Italian, and Vietnamese. Download Abacus Trainer and start seeing the beads in your head.

About

FlashAnzan

Features
Read full description

Practice flash anzan (flash mental arithmetic) in the same format as the Japanese grading exam—and climb the ranks. GRADED MODE (30 RANKS, KYU 10 TO DAN 20) Each rank uses the exam's total-time format: numbers flash within a fixed total time, you answer 10 problems, and 70 points is a pass. YOUR GRADE IS KEPT Your best rank is recorded on the device and in iCloud, so it follows you to a new device. ANSWER BY VOICE Type on the number pad, or just say the answer. Speech recognition runs entirely on your device—your voice is never sent anywhere. CUSTOM PRACTICE Set digits, count, and display time yourself—from slow single digits to 3-digit numbers at 0.3 seconds. IPHONE DUO Big numbers when it's open; fold it in half and the question sits above with the number keys below. Close it and keep practicing on the outer screen. IPHONE, IPAD AND MAC Works on iPhone, iPad and Mac, and your grade follows you between them through iCloud. No ads. Available in nine languages: English, Japanese, Chinese (Simplified and Traditional), Korean, German, Spanish, French and Brazilian Portuguese. Note: This app is not affiliated with or endorsed by any certification body.

Screenshots

Abacus Trainer4 screens
FlashAnzan4 screens

Verdict

The call

The clearest difference is ads: FlashAnzan at none against Abacus Trainer's shown. FlashAnzan also leads on update cadence (every 3 days vs fortnightly). Abacus Trainer's advantage is iOS requirement (15.0 vs 18.0). On price, in-app purchases 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. Abacus Trainer sells 1 one-off in-app purchase and FlashAnzan sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Abacus Trainer ships an update fortnightly, FlashAnzan every 3 days. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

Scorecard3 real differences · 3 level
Abacus Trainer versus FlashAnzan: the parameters behind the verdict, then further details
ParameterAbacus TrainerFlashAnzan
PriceFreeFree
Update frequencyFortnightlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac, Apple Watch — better
Requires iOS15.0 — better18.0
Further details — not scored
Size31 MB8 MB
Age rating9+4+
DeveloperDoni WinataHaruhiko Kishi

In-app purchases

1 purchases

Abacus Trainer

One-time1
  • Remove Ads$4.99
1 purchases

FlashAnzan

One-time1
  • Unlock All Grades$3.99

Questions

Is Abacus Trainer free?
Abacus Trainer is free to download, with in-app purchases available.
Is FlashAnzan free?
FlashAnzan is free to download, with in-app purchases available.
Do Abacus Trainer or FlashAnzan have ads?
Abacus Trainer shows ads; FlashAnzan does not.
Which is updated more often, Abacus Trainer or FlashAnzan?
Abacus Trainer ships an update fortnightly, and FlashAnzan every 3 days. Most recently, Abacus Trainer was updated on October 25, 2026 and FlashAnzan on October 27, 2026.

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