# Math Attack vs NumLock

The clearest difference is price: NumLock at Free against Math Attack's $1.99. Math Attack's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

NumLock is free to download; Math Attack costs $1.99 up front. NumLock sells 2 in-app purchases, starting at $4.99 per month. Math Attack asks for nothing beyond the download.

## The numbers

| Metric | Math Attack | NumLock |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Paid | — |
| Size | 12 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Travis Andrew Weninger](https://appshunter.io/developer/1811815755) | [Peter Li](https://appshunter.io/developer/424298074) |

## What reviewers say

### Math Attack

[App page](https://appshunter.io/ios/app/math-attack-kill-screen-time/id6746510772)

This app helps you reclaim your time by transforming distracting app usage into quick math challenges. Before accessing social media or other time-consuming apps, you must solve a math problem. It acts as a mental firewall to reduce impulse scrolling and improve focus.

**Highlights:** Shield distracting apps, Unlock access with math problems, Customizable difficulty, Automatic re-locks, Brain training, Reduces impulse scrolling

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

**In-app purchases:** none


### NumLock

[App page](https://appshunter.io/ios/app/numlock-math-screen-lock/id6761402140)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NumLock Pro Monthly | $4.99 | per month |
| NumLock Pro Annual | $39.99 | per year |


## Frequently asked questions

### Is Math Attack free?

Math Attack costs $1.99, with no in-app purchases.

### Is NumLock free?

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

### Do Math Attack or NumLock have ads?

Neither Math Attack nor NumLock shows ads.

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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.*