Ninimaths vs drillio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ninimaths
Enhance your mental arithmetic skills with a variety of calculation modes. Practice addition, subtraction, multiplication, and division with customizable number ranges and column display. Track your progress with daily scores and compete with others through a ranking system.
- Multiple calculation modes (add, subtract, multiply, divide, mix)
- Customizable number ranges (1-5 digits)
- Column display format
- Daily score recording and graphing
- Game Center ranking
- Time trial mode
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Ninimaths is an application to train mental arithmetic ability. Characteristic: - Selection from 5 modes of calculation, addition, subtraction, multiplication, division, mixing - 1 to 5 digit numbers can be freely combined - Corresponds to display in the column format - Daily scores are recorded for each mode and displayed on the graph - Ranking function by Game Center - Time trial to measure strictly
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 ads: Ninimaths at none against drillio's shown. Ninimaths also leads on rating (4.9 vs 4.5) and ratings volume (45 vs 8). drillio's advantage is update cadence (every 2 weeks vs every 2 months). On price, review sentiment, 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. Ninimaths sells 3 one-off in-app purchases 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.
Ninimaths holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Ninimaths has 45 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 97% of Ninimaths's written reviews are positive against 90% of drillio's.
Ninimaths ships an update every 2 months, drillio every 2 weeks. The most recent releases landed on October 16, 2026 and October 18, 2026 respectively.
| Parameter | Ninimaths | drillio |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (45 ratings) — better | 4.5 (8 ratings) |
| Positive reviews | 97.4% of reviews — better | 90.0% of reviews |
| Number of ratings | 45 — better | 8 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 11 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | Ninicode | Ryo Iida |
Customer experience
Ninimaths
drillio
In-app purchases
Ninimaths
- Coffee$0.99
- Hamburger$1.99
- Ramen$4.99
drillio
- drillio PRO Monthly$1.991 Month
- drillio PRO campaign1 Year trial$14.991 Year
- drillio PRO Annual$14.991 Year
