# RefScale vs Voltary

The clearest difference is in-app purchases: Voltary at none against RefScale's 2. Voltary also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.0). RefScale's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. RefScale sells 2 one-off in-app purchases. Voltary asks for nothing beyond the download.

## The numbers

| Metric | RefScale | Voltary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 7 MB | 45 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhanarys Toremurat](https://appshunter.io/developer/1870705721) | [Hasanain Alhamedi](https://appshunter.io/developer/6777917433) |

## What reviewers say

### RefScale

[App page](https://appshunter.io/ios/app/refscale-photo-ruler/id6760479484)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Photo | $1.99 | one-time |
| RefScale Pro Lifetime | $9.99 | one-time |


### Voltary

[App page](https://appshunter.io/ios/app/voltary/id6778161465)

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

**In-app purchases:** none


## Frequently asked questions

### Is RefScale free?

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

### Is Voltary free?

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

### Do RefScale or Voltary have ads?

Voltary shows ads; RefScale 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.*