npiSoroban vs Math Flash Cards
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Digital soroban (abacus)
- Narrated tutorials
- Arithmetic practice
- Educational tool
- Supports iPhone and iPad
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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.
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.
- Practice addition, subtraction, multiplication, division
- Customizable difficulty levels
- Keypad or multiple choice input
- Instant feedback and session summaries
- Progress tracking over time
- Offline functionality
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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
Verdict
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
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.
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.
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.
| Parameter | npiSoroban | Math Flash Cards |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 3.8 (4 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 5 — better | 4 |
| Update frequency | Every 5 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 5.1.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 95 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Nonpareil Institute | Sandratra Razafindralambo |
Customer experience
npiSoroban
Math Flash Cards
In-app purchases
npiSoroban
No in-app purchases
Math Flash Cards
- MathX Pro (Monthly)$2.991 Month
- MathX Pro (Annual)$17.991 Year
- Starter Upgrade$7.99
- Discounted Upgrade$9.99
- Pro Upgrade$12.99
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- MathX Pro (Lifetime)$24.99





