# RulePad vs Photo Ruler

The clearest difference is in-app purchases: RulePad at none against Photo Ruler's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Photo Ruler sells 1 in-app purchase, starting at $6.99 per year. RulePad asks for nothing beyond the download.

RulePad ships an update every 2 weeks, Photo Ruler weekly. Both last shipped on October 25, 2026.

## The numbers

| Metric | RulePad | Photo Ruler |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Weekly** |
| Size | 3 MB | 6 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JUMING LAI](https://appshunter.io/developer/1886006893) | [Ihar Shaduryn](https://appshunter.io/developer/988578285) |

## What reviewers say

### RulePad

[App page](https://appshunter.io/ios/app/rulepad/id6762023547)

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

**In-app purchases:** none


### Photo Ruler

[App page](https://appshunter.io/ios/app/photo-ruler-measure-objects/id6792457241)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paper Image Meter Unlimited | $6.99 | per year |


## Frequently asked questions

### Is RulePad free?

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

### Is Photo Ruler free?

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

### Do RulePad or Photo Ruler have ads?

Neither RulePad nor Photo Ruler shows ads.

### Which is updated more often, RulePad or Photo Ruler?

RulePad ships an update every 2 weeks, and Photo Ruler weekly. Most recently, RulePad was updated on October 25, 2026 and Photo Ruler on October 25, 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.*