# DCT vs Math Drill

The clearest difference is in-app purchases: DCT at none against Math Drill's 2. DCT also leads on device support (3 vs 1) and iOS requirement (12 vs 17.0). Math Drill's advantage is update cadence (monthly vs every 9 months). On price and ads there is nothing between them.

Both are free to download. Math Drill sells 2 in-app purchases, starting at $2.99 per 7 days. DCT asks for nothing beyond the download.

DCT ships an update every 9 months, Math Drill monthly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | DCT | Math Drill |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Size | 123 MB | 6 MB |
| Requires iOS | **12** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Chi Hsien Lai](https://appshunter.io/developer/1039759515) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### DCT

[App page](https://appshunter.io/ios/app/dct/id6504516916)

**Features:** macOS Compatibility

**In-app purchases:** none


### Math Drill

[App page](https://appshunter.io/ios/app/math-drill-mental-arithmetic/id6771411490)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is DCT free?

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

### Is Math Drill free?

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

### Do DCT or Math Drill have ads?

Neither DCT nor Math Drill shows ads.

### Which is updated more often, DCT or Math Drill?

DCT ships an update every 9 months, and Math Drill monthly. Most recently, DCT was updated on September 9, 2026 and Math Drill on September 24, 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.*