Mental Math vs drillio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mental Math
Enhance your mental math abilities with this interactive app. It offers engaging gameplay and exercises, teaching calculation secrets and tricks to solve problems quickly. Track your progress and compete globally.
- Basic operations (+, -, x, /)
- Multiplication tables (1-20)
- Power calculation (1-100)
- Percentage challenges
- Fast calculation tricks
- Adjustable difficulty levels
- Progress tracking
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Discover the power of Mental Calculation, an interactive app tailored for kids, students, and adults, crafted to enhance your mental math skills. Learn and improve effortlessly through exciting gameplay or exercise. Includes fast Calculation secrets and tricks to help you solve problems in seconds! Follow and compare your world ranking with the Game Center. Perfect for all skill levels, this app offers personalized practice to help you improve and excel. Features and Options Include: Basic operations: +, -, x, / Multiplication tables (1 to 20) Power calculation (1 to 100) Percentage challenges Cheering messages Fast calculation tricks Learning section: times and power tables Difficulty levels: beginner to expert in 5 levels Adjustable or no timer option Shows correct answer if you fail Track your history, best score, and prices
drillio
Enhance your calculation abilities with engaging mental math exercises. This app offers customizable practice cards for addition, subtraction, multiplication, and division, along with progress tracking to keep you motivated.
- Mental math cards for calculation techniques
- Customizable practice modes
- Progress tracking via stats tab
- Engaging brain-boosting exercises
- Covers addition, subtraction, multiplication, division
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drillio helps you build real mental math skills with soroban-style flash anzan and arithmetic drills. 41 flash anzan levels (from beginner to 20th dan) and 278 arithmetic lessons. All core learning is free. FLASH ANZAN - 41 levels: beginner, 20th kyu to 1st kyu, then 1st to 20th dan - Master a level by answering correctly 10 times, and earn a certificate - Frame-accurate display timing, so even the fastest flashes are shown precisely - Custom mode: choose your own digits, number of terms and display time - Your fastest answer is saved automatically ARITHMETIC DRILLS - 278 lessons in addition, subtraction, multiplication and division, from basic to advanced - 2-digit x 2-digit, 3-digit problems, fill-in-the-blank problems and more - Earn more points the faster you answer, and see your progress for each lesson CHALLENGES - Time Attack: solve as many problems as you can before time runs out - Oni Calc: answer the problem from N steps back, training memory and calculation together KEEP GOING - Daily streaks, study time and points - Reminders before your streak ends drillio PRO (optional) - No ads - Dark mode - Streak recovery - Priority support Subscriptions renew automatically unless cancelled. Terms of Use: https://gist.github.com/aviciida/c635fb7d61c24c8df4f39506902f3ca6 Privacy Policy: https://gist.github.com/aviciida/f9dd03234fa3de0b23aa536073abcca4
Screenshots
Verdict
The clearest difference is rating: drillio at 4.5 against Mental Math's 4.0. drillio also leads on ratings volume (8 vs 1). Mental Math's advantage is ads (none vs shown) and review sentiment (100% vs 90%). On price, update cadence, 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 1 one-off in-app purchase and drillio sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
drillio holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: drillio has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of Mental Math's written reviews are positive against 90% of drillio's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 16, 2026 and October 27, 2026 respectively.
| Parameter | Mental Math | drillio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) | 4.5 (8 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 90.0% of reviews |
| Number of ratings | 1 | 8 — better |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 33 MB |
| Age rating | 9+ | 4+ |
| Developer | Oliver Glaettli | Ryo Iida |
Customer experience
Mental Math
drillio
In-app purchases
Mental Math
- Purchase Mental Calculation$6.99
drillio
- drillio PRO Monthly$1.991 Month
- drillio PRO campaign1 Year trial$14.991 Year
- drillio PRO Annual$14.991 Year
