# Unit Conversion Lab vs Scaflow

The clearest difference is in-app purchases: Unit Conversion Lab at none against Scaflow's 1. Scaflow's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Scaflow sells 1 one-off in-app purchase. Unit Conversion Lab asks for nothing beyond the download.

## The numbers

| Metric | Unit Conversion Lab | Scaflow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Weekly |
| Size | 9 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Selcuk ASLANTAS](https://appshunter.io/developer/1556053491) | [Satoshi Sakuma](https://appshunter.io/developer/1791815850) |

## What reviewers say

### Unit Conversion Lab

[App page](https://appshunter.io/ios/app/unit-conversion-lab/id6756374797)

**Features:** macOS Compatibility

**In-app purchases:** none


### Scaflow

[App page](https://appshunter.io/ios/app/scaflow-barcode-for-pc/id6761039235)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scaflow Pro | $5.99 | one-time |


## Frequently asked questions

### Is Unit Conversion Lab free?

Unit Conversion Lab is free to download, with no in-app purchases.

### Is Scaflow free?

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

### Do Unit Conversion Lab or Scaflow have ads?

Unit Conversion Lab shows ads; Scaflow 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.*