Mental Math vs NihongoMon
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
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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
NihongoMon
Learn Japanese vocabulary and characters by training with cute monsters. Level up your skills, discover new monsters, and analyze your progress with detailed stats. Master the language to collect them all.
- Monster-themed learning
- Virtual flashcards
- Interactive quizzes
- Skill leveling system
- Progress analysis
- Vocabulary and character mastery
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LEVEL UP your JAPANESE LANGUAGE SKILLS in the world of NihongoMon! NihongoMon are *kawaii* monsters that want to share their unique Hiragana, Katakana, Kanji or Vocabulary with you! Access each mon's study materials to prepare with virtual flashcards, and then quiz yourself by training with them! With each LEVEL UP, your JAPANESE SKILLS will improve AND you can discover even more NihongoMon with NEW JAPANESE to MASTER! When you have finished training, you can review your stats; allowing you to ANALYZE your STRENGTHS and WEAKNESSES in your studies! MEMORIZE and MASTER the JAPANESE LANGUAGE to discover ALL of the NihongoMon! LET'S GO! NIHONGOMON! Privacy: https://www.nihongomon.com/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula Visit: https://www.nihongomon.com
Screenshots
Verdict
The clearest difference is rating: NihongoMon at 5.0 against Mental Math's 3.7. NihongoMon also leads on review sentiment (100% vs 63%) and update cadence (every 10 days vs every 5 weeks). Mental Math's advantage is ratings volume (19 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and monetization model 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 3 in-app purchases, starting at $0.99 per month and NihongoMon sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
NihongoMon holds the better App Store score, 5.0 against 3.7. That said, the two scores are not equally well evidenced: 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: 63% of Mental Math's written reviews are positive against 100% of NihongoMon's.
Mental Math ships an update every 5 weeks, NihongoMon every 10 days. The most recent releases landed on October 5, 2026 and September 12, 2026 respectively.
| Parameter | Mental Math | NihongoMon |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (19 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 62.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 19 — better | 1 |
| Update frequency | Every 5 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 91 MB | 253 MB |
| Age rating | 4+ | 12+ |
| Developer | Mehul Mistri | Coty Kovach |
Customer experience
Mental Math
NihongoMon
In-app purchases
Mental Math
- Mental Math Premium$0.991 Month
- Mental Math Premium$1.993 Months
- Mental Math Premium$6.991 Year
NihongoMon
- Premium Monthly7 Days trial$4.991 Month
- Premium Yearly7 Days trial$29.991 Year
