# BrainPass vs NumLock

The clearest difference is in-app purchases: BrainPass at none against NumLock's 2. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NumLock sells 2 in-app purchases, starting at $4.99 per month. BrainPass asks for nothing beyond the download.

## The numbers

| Metric | BrainPass | NumLock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 days | — |
| Size | 19 MB | 2 MB |
| Requires iOS | **16** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FireUp Lab](https://appshunter.io/developer/1786432515) | [Peter Li](https://appshunter.io/developer/424298074) |

## What reviewers say

### BrainPass

[App page](https://appshunter.io/ios/app/brainpass-think-to-unlock/id6761079221)

**Features:** 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 BrainPass free?

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

### Is NumLock free?

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

### Do BrainPass or NumLock have ads?

Neither BrainPass 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.*