# Image Ruler vs PotholeScan

The clearest difference is ads: PotholeScan at none against Image Ruler's shown. PotholeScan also leads on update cadence (every 2 days vs every 3 weeks). Image Ruler's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and in-app purchases there is nothing between them.

Both are free to download. Image Ruler sells 5 one-off in-app purchases and PotholeScan sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Image Ruler ships an update every 3 weeks, PotholeScan every 2 days. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Image Ruler | PotholeScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (45 ratings)](https://appshunter.io/ios/app/image-ruler-measures/id1474481911/reviews)** | — |
| Number of ratings | **45** | — |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free | — |
| Size | 47 MB | 120 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Martin Schurmann](https://appshunter.io/developer/1469819101) | [OFO Tech](https://appshunter.io/developer/1435806692) |

## What reviewers say

### Image Ruler

[App page](https://appshunter.io/ios/app/image-ruler-measures/id1474481911)

This app allows you to measure objects directly on photos. Simply take a picture, mark a known object for reference, and then draw measurements on other items within the same image. It supports both metric and imperial units and offers intuitive editing tools.

**Highlights:** Measure objects on photos, Use a known object as a reference, Supports metric and imperial units, Intuitive editing interface, Organize photos easily, Zoom for precision

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| imageRulerPro | $0.99 | one-time |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Big Tip | $4.99 | one-time |
| Big tip | $4.99 | one-time |


### PotholeScan

[App page](https://appshunter.io/ios/app/potholescan/id6792526454)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PotholeScan Pro | $14.99 | per month |
| PotholeScan Pro (Annual) | $149.00 | per year |


## Frequently asked questions

### Is Image Ruler free?

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

### Is PotholeScan free?

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

### Do Image Ruler or PotholeScan have ads?

Image Ruler shows ads; PotholeScan does not.

### Which is updated more often, Image Ruler or PotholeScan?

Image Ruler ships an update every 3 weeks, and PotholeScan every 2 days. Most recently, Image Ruler was updated on October 20, 2026 and PotholeScan on October 8, 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.*