# RefScale vs Ruler ▸

The clearest difference is in-app purchases: Ruler ▸ at none against RefScale's 6. Ruler ▸ also leads on update cadence (daily vs fortnightly) and iOS requirement (15.1 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. RefScale sells 6 in-app purchases, starting at $5.99 per month. Ruler ▸ asks for nothing beyond the download.

RefScale ships an update fortnightly, Ruler ▸ daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | RefScale | Ruler ▸ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 7 MB | 74 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhanarys Toremurat](https://appshunter.io/developer/1870705721) | [Yaroslava Majstrovich](https://appshunter.io/developer/1468058631) |

## What reviewers say

### RefScale

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RefScale Pro Monthly | $5.99 | per month |
| RefScale Pro Yearly | $49.99 | per year |
| 5 AI Credits | $2.99 | one-time |
| 15 AI Credits | $6.99 | one-time |
| RefScale Pro Lifetime | $9.99 | one-time |
| 50 AI credits | $19.99 | one-time |


### Ruler ▸

[App page](https://appshunter.io/ios/app/ruler/id6805987132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RefScale free?

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

### Is Ruler ▸ free?

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

### Do RefScale or Ruler ▸ have ads?

Neither RefScale nor Ruler ▸ shows ads.

### Which is updated more often, RefScale or Ruler ▸?

RefScale ships an update fortnightly, and Ruler ▸ daily. Most recently, RefScale was updated on October 31, 2026 and Ruler ▸ on October 31, 2026.

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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.*