# NumLock vs CalcGate | App Lock with Math

The clearest difference is in-app purchases: CalcGate | App Lock with Math at none against NumLock's 2. NumLock's advantage is iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. NumLock sells 2 in-app purchases, starting at $4.99 per month. CalcGate | App Lock with Math asks for nothing beyond the download.

## The numbers

| Metric | NumLock | CalcGate | App Lock with Math |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 2 MB | 4 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Peter Li](https://appshunter.io/developer/424298074) | [HIDEYUKI INAGAKI](https://appshunter.io/developer/1819355611) |

## What reviewers say

### 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 |


### CalcGate | App Lock with Math

[App page](https://appshunter.io/ios/app/calcgate-app-lock-with-math/id6762510886)

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

**In-app purchases:** none


## Frequently asked questions

### Is NumLock free?

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

### Is CalcGate | App Lock with Math free?

CalcGate | App Lock with Math is free to download, with no in-app purchases.

### Do NumLock or CalcGate | App Lock with Math have ads?

Neither NumLock nor CalcGate | App Lock with Math 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.*