Comparison

npiSoroban vs Math Flash Cards

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

Head to head
About

npiSoroban

Learn to use the Japanese abacus, or soroban, with narrated tutorials on your iPhone or iPad. Master arithmetic with this ancient tool, now digitized for modern learning.

Highlights
  • Digital soroban (abacus)
  • Narrated tutorials
  • Arithmetic practice
  • Educational tool
  • Supports iPhone and iPad
Features
Read full description

The Japanese soroban, otherwise known as an abacus, has been used for centuries in markets around the world. From stones and grooves in the sand, the soroban is now realized on the iPhone, complete with narrated tutorials. Once you get the hang of it, math as never been so easy! ABOUT US npiSoroban is created by NonPareil Institute, a non-profit group that provides technical training for individuals on the autistic spectrum. nP provides job and life skills to equip autistic individuals to live and work. We also offer training in game design, programming, sound, music, and 2D/3D art. More importantly we offer a safe place for men and women to be more than what society expects. Here they learn teamwork, find community and work to achieve fulfilled lives.

About

Math Flash Cards

This app offers fast, focused sessions to improve mental math skills. Users can practice various operations, customize difficulty, and track their progress with instant feedback. It's designed for daily practice to build number fluency and confidence.

Highlights
  • Practice addition, subtraction, multiplication, division
  • Customizable difficulty levels
  • Keypad or multiple choice input
  • Instant feedback and session summaries
  • Progress tracking over time
  • Offline functionality
Read full description

Looking for a simple way to practice math, improve your speed, and build real fluency with numbers? MathX helps you train your mental math skills with fast practice sessions. Choose the operation you want to work on, adjust the difficulty, and solve questions using a distraction-free interface. Track your performance over time and see how your accuracy and speed improve with every session. MathX is perfect for daily practice, sharpening calculation speed, preparing for exams, or building confidence with numbers at any level. Whether you want quick drills or more challenging sessions, MathX adapts to your pace. Key Features: - Practice addition, subtraction, multiplication, division, or mixed operations - Customize difficulty by adjusting number ranges - Choose how many questions per session - Answer using keypad input or multiple choice - Clean, calculator-style interface for fast input - Instant feedback after each answer - Session summary with score and time - Track your overall accuracy and progress over time - Fast, focused sessions designed for daily practice - Results stay secure on your device (100% offline)

Screenshots

npiSoroban4 screens
Math Flash Cards4 screens

Verdict

The call

The clearest difference is review sentiment: npiSoroban at 100% against Math Flash Cards's 0%. npiSoroban also leads on in-app purchases (none vs 6) and iOS requirement (5.1.1 vs 15.0). Math Flash Cards's advantage is rating (3.8 vs 3.4) and update cadence (every 4 weeks vs every 5 months). On price, ratings volume, 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. Math Flash Cards sells 6 in-app purchases, starting at $2.99 per month. npiSoroban asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Math Flash Cards holds the better App Store score, 3.8 against 3.4. Both are backed by a comparable volume of ratings — 5 and 4 respectively. Written reviews complicate that: 100% of npiSoroban's written reviews are positive against 0% of Math Flash Cards's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

npiSoroban ships an update every 5 months, Math Flash Cards every 4 weeks. The most recent releases landed on June 11, 2026 and September 20, 2026 respectively.

Scorecard6 real differences · 4 level
npiSoroban versus Math Flash Cards: the parameters behind the verdict, then further details
ParameternpiSorobanMath Flash Cards
PriceFreeFree
Rating3.4 (5 ratings)3.8 (4 ratings) — better
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings5 — better4
Update frequencyEvery 5 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS5.1.1 — better15.0
Further details — not scored
Size95 MB3 MB
Age rating4+4+
DeveloperNonpareil InstituteSandratra Razafindralambo

Customer experience

npiSoroban

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Math Flash Cards

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

npiSoroban

No in-app purchases

6 purchases

Math Flash Cards

Subscriptions2
  • MathX Pro (Monthly)$2.991 Month
  • MathX Pro (Annual)$17.991 Year
One-time4
  • Starter Upgrade$7.99
  • Discounted Upgrade$9.99
  • Pro Upgrade$12.99
Show 1 more
  • MathX Pro (Lifetime)$24.99

Questions

Is npiSoroban free?
npiSoroban is free to download, with no in-app purchases.
Is Math Flash Cards free?
Math Flash Cards is free to download, with in-app purchases available.
Which has better reviews, npiSoroban or Math Flash Cards?
Math Flash Cards is rated higher. npiSoroban averages 3.4 out of 5 from 5 ratings, while Math Flash Cards averages 3.8 from 4 ratings.
Do npiSoroban or Math Flash Cards have ads?
Neither npiSoroban nor Math Flash Cards shows ads.
Which is updated more often, npiSoroban or Math Flash Cards?
npiSoroban ships an update every 5 months, and Math Flash Cards every 4 weeks. Most recently, npiSoroban was updated on June 11, 2026 and Math Flash Cards on September 20, 2026.

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