# Mental Math vs drillio

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.

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.

Mental Math ships an update every 2 weeks, drillio fortnightly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mental Math | drillio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/mental-math-fast-calculation/id1515025315/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/drillio-mental-math-training/id6444734622/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | **100.0% of reviews** | 90.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 59 MB | 33 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Oliver Glaettli](https://appshunter.io/developer/1515025314) | [Ryo Iida](https://appshunter.io/developer/1506522991) |

## What reviewers say

### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-fast-calculation/id1515025315)

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.

**Highlights:** Basic operations (+, -, x, /), Multiplication tables (1-20), Power calculation (1-100), Percentage challenges, Fast calculation tricks, Adjustable difficulty levels, Progress tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Purchase Mental Calculation | $6.99 | one-time |


### drillio

[App page](https://appshunter.io/ios/app/drillio-mental-math-training/id6444734622)

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.

**Highlights:** Mental math cards for calculation techniques, Customizable practice modes, Progress tracking via stats tab, Engaging brain-boosting exercises, Covers addition, subtraction, multiplication, division

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| drillio PRO Monthly | $1.99 | per month |
| drillio PRO campaign | $14.99 | per year |
| drillio PRO Annual | $14.99 | per year |


## Frequently asked questions

### Is Mental Math free?

Mental Math is free to download, with in-app purchases available.

### Is drillio free?

drillio is free to download, with in-app purchases available.

### Which has better reviews, Mental Math or drillio?

drillio is rated higher. Mental Math averages 4.0 out of 5 from 1 ratings, while drillio averages 4.5 from 8 ratings.

### Do Mental Math or drillio have ads?

drillio shows ads; Mental Math does not.

### Which is updated more often, Mental Math or drillio?

Mental Math ships an update every 2 weeks, and drillio fortnightly. Most recently, Mental Math was updated on October 16, 2026 and drillio on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*