# DIYables Bluetooth STEM vs CU 25

The clearest difference is ads: CU 25 at none against DIYables Bluetooth STEM's shown. On price, in-app purchases, device support and iOS requirement 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 | DIYables Bluetooth STEM | CU 25 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 2 weeks |
| Size | 32 MB | 18 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SY KHANH HO](https://appshunter.io/developer/1851698856) | [Ahmet Aydin](https://appshunter.io/developer/1892870491) |

## What reviewers say

### DIYables Bluetooth STEM

[App page](https://appshunter.io/ios/app/diyables-bluetooth-stem/id6760932195)

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

**In-app purchases:** none


### CU 25

[App page](https://appshunter.io/ios/app/cu-25/id6788033757)

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

**In-app purchases:** none


## Frequently asked questions

### Is DIYables Bluetooth STEM free?

DIYables Bluetooth STEM is free to download, with no in-app purchases.

### Is CU 25 free?

CU 25 is free to download, with no in-app purchases.

### Do DIYables Bluetooth STEM or CU 25 have ads?

DIYables Bluetooth STEM shows ads; CU 25 does not.

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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.*