# drillio vs CUBICENGINE

The clearest difference is in-app purchases: CUBICENGINE at none against drillio's 3. CUBICENGINE also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. drillio sells 3 in-app purchases, starting at $1.99 per month. CUBICENGINE asks for nothing beyond the download.

drillio ships an update fortnightly, CUBICENGINE every 2 weeks. The most recent releases landed on September 26, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | drillio | CUBICENGINE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/drillio-mental-math-training/id6444734622/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 90.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 33 MB | 23 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Ryo Iida](https://appshunter.io/developer/1506522991) | [iha kanako](https://appshunter.io/developer/6803792206) |

## 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 |


### CUBICENGINE

[App page](https://appshunter.io/ios/app/cubicengine/id6804058969)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is drillio free?

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

### Is CUBICENGINE free?

CUBICENGINE is free to download, with no in-app purchases.

### Do drillio or CUBICENGINE have ads?

drillio shows ads; CUBICENGINE does not.

### Which is updated more often, drillio or CUBICENGINE?

drillio ships an update fortnightly, and CUBICENGINE every 2 weeks. Most recently, drillio was updated on September 26, 2026 and CUBICENGINE on September 17, 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.*