Mental Math vs Sumflash
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Math
This app teaches children arithmetic and calculation skills using an abacus and mental math techniques. It offers fun quizzes and practice problems to improve cognitive performance and mathematical ability.
- Abacus learning
- Mental calculation techniques
- Vedic math tricks
- Addition, subtraction, multiplication, division
- Quiz-based learning
- Progress monitoring
Read full descriptionHide full description
Abacus is a wonderful tool used for calculation. Mental Math will help your children learn about Abacus, Numbers, Addition, Subtraction, Multiplication and Division. It generates mathematical problems for kids to solve using mental calculation techniques, Vedic math tricks or using an Abacus. "Learn while you play" is our motto. We thrive to deliver the elementary math game where you can learn online in a fun manner. Specially designed quiz helps you to sharpen your mental ability to solve complex calculations and improve your cognitive performance. The Main features of the Mobile application are its ability to provide the students with intelligent features and provide a holistic approach which makes learning mathematics – A Fun. • Realistic assessment practice to ensure improved test scores. • Reach everyone - Teach everyone Methodology. • Students are at the heart of everything we do. • Insightful and Actionable reports to monitor student progress and measure growth. Connect With Mental Math Twitter - https://twitter.com/mentalmathdotme Instagram - https://www.instagram.com/mentalmath.me/ Facebook - https://www.facebook.com/MentalMath.me Terms & Conditions - https://mentalmath.me/terms-and-conditions Got any questions or feedback? Reach out to us at contact@mentalmath.me Copyright © 2024 MentalMath.me
Sumflash
Read full descriptionHide full description
Numbers appear on screen one at a time, each for just a moment. Add them all up in your head and enter the total. This is flash mental math, the way it's practiced with the soroban (Japanese abacus). There are 30 levels, and you practice at the one you choose. - See why you missed After each answer, review every number that flashed along with the running total at that point. Numbers where a carry happened are highlighted, so you can spot exactly where you slipped. Replay the same problem, or replay it slowly. - From 0.2 to 5.0 seconds Set the speed yourself anywhere from 0.2 to 5.0 seconds per number. - 30 levels From 1 digit, 3 numbers, 1 second each, each level changes one thing at a time: more numbers, then faster, then more digits (up to 3 digits, 15 numbers, 0.5 seconds). Change your level anytime from the home screen. Already experienced? Pick a higher starting point on the first launch. - A daily habit Your home screen shows your streak: how many days in a row you've practiced. Miss just one day in a Monday-to-Sunday week and your streak stays alive. One set is five problems and takes just a few minutes. Set a daily reminder at a time you choose (it stays quiet on days you've already practiced). - Five themes • Minimal: thin numbers on white • Washi: Mincho numerals and a red seal • Neon: glowing numbers • Chalkboard: chalk numbers on green • Sakura: rounded numbers on pale pink Your records carry over when you change themes. - For the whole family Each profile keeps its own level, practice days, and records. - Ranked play and leaderboards One digit, ten numbers, a little faster each stage. Your fastest cleared display time goes to Game Center leaderboards (today, this week, all time; global and friends). - Add, subtract, multiply, divide Pick one from the tabs on the home screen. Addition and subtraction (mixed plus and minus) flash numbers one at a time; multiplication and division flash a single expression like "23 × 7". Each has its own 30 levels to choose from. - Read aloud Have numbers read aloud as they flash. - Also • An optional tick sound with each number (plays even in Silent mode; you can turn it off in Settings) • Numbers simply appear and disappear, with no animation getting in the way • Records are stored only on your device (if you're signed in to Game Center, only your best ranked-play time is sent to Apple for the leaderboard) • No sign-in - Premium (auto-renewable subscription) • No ads Monthly subscription. The price is shown in the app and may vary by region. It renews automatically every month and is charged to your Apple ID unless you cancel at least 24 hours before the renewal date. Cancel anytime in iPhone Settings › Apple ID › Subscriptions. Premium only removes ads. Every other feature is free. - About ads Ads appear at the bottom of the home screen and between sets. No ads while numbers are flashing, while you're entering your answer, or while you're reviewing. Premium has no ads. Terms of Use: https://fukuidinotech.github.io/sumflash-lp/terms.html Privacy Policy: https://fukuidinotech.github.io/sumflash-lp/privacy.html Contact: fukuidinotech@gmail.com
Screenshots
Verdict
The clearest difference is ads: Mental Math at none against Sumflash's shown. Mental Math also leads on iOS requirement (15.0 vs 17.0). Sumflash's advantage is update cadence (weekly vs every 5 weeks). 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
Both are free to download. Mental Math sells 4 in-app purchases, starting at $0.99 per month and Sumflash sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Mental Math ships an update every 5 weeks, Sumflash weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Mental Math | Sumflash |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (19 ratings) — better | — |
| Positive reviews | 62.5% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 91 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Mehul Mistri | Toru Fukui |
In-app purchases
Mental Math
- Mental Math Premium$0.991 Month
- Mental Math Premium$1.993 Months
- Mental Math Premium$6.991 Year
- Premium Ad-Free$0.99
Sumflash
- Premium (Monthly)$1.991 Month









