# drillio vs Mental Math Speed Trainer

The clearest difference is review sentiment: drillio at 90% against Mental Math Speed Trainer's 18%. drillio also leads on rating (4.5 vs 4.3). Mental Math Speed Trainer's advantage is update cadence (weekly vs fortnightly). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. drillio sells 3 in-app purchases, starting at $1.99 per month and Mental Math Speed Trainer sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

drillio holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews point the same way: 90% of drillio's written reviews are positive against 18% of Mental Math Speed Trainer's.

drillio ships an update fortnightly, Mental Math Speed Trainer weekly. The most recent releases landed on September 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | drillio | Mental Math Speed Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/drillio-mental-math-training/id6444734622/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/mental-math-speed-trainer/id6476421167/reviews) |
| Number of ratings | **8** | 4 |
| Positive reviews | **90.0% of reviews** | 17.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 33 MB | 56 MB |
| Requires iOS | **16.0** | 17.2 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Iida](https://appshunter.io/developer/1506522991) | [TAKAYUKI HASHIMOTO](https://appshunter.io/developer/1689527181) |

## What reviewers say

### 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 |


### Mental Math Speed Trainer

[App page](https://appshunter.io/ios/app/mental-math-speed-trainer/id6476421167)

Sharpen your mental math skills with this engaging app focused on addition. Customize card numbers and timing intervals for a personalized learning experience. Track your progress with visually stimulating graphics, suitable for all ages.

**Highlights:** Customizable card numbers, Adjustable timing intervals, Focus on addition, Progress tracking, Engaging visuals, User-friendly interface

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月間プラン | $2.99 | per month |
| 年間プラン | $19.99 | per year |
| Lifetime Premium | $39.99 | one-time |


## Frequently asked questions

### Is drillio free?

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

### Is Mental Math Speed Trainer free?

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

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

drillio is rated higher. drillio averages 4.5 out of 5 from 8 ratings, while Mental Math Speed Trainer averages 4.3 from 4 ratings.

### Do drillio or Mental Math Speed Trainer have ads?

Both drillio and Mental Math Speed Trainer show ads.

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

drillio ships an update fortnightly, and Mental Math Speed Trainer weekly. Most recently, drillio was updated on September 20, 2026 and Mental Math Speed Trainer on September 22, 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.*