# Build CLS vs The Learning Hub

The clearest difference is iOS requirement: Build CLS at 13.0 against The Learning Hub's 15.6. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Build CLS | The Learning Hub |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | — |
| Size | 17 MB | 28 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Clinical Leadership Solutions LTD](https://appshunter.io/developer/1434082548) | [Medical Protection Society](https://appshunter.io/developer/512523750) |

## What reviewers say

### Build CLS

[App page](https://appshunter.io/ios/app/build-cls/id1439136458)

**In-app purchases:** none


### The Learning Hub

[App page](https://appshunter.io/ios/app/the-learning-hub/id6470279856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Build CLS free?

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

### Is The Learning Hub free?

The Learning Hub is free to download, with no in-app purchases.

### Do Build CLS or The Learning Hub have ads?

Neither Build CLS nor The Learning Hub 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.*