# Image Ruler vs PE Trainer

The clearest difference is rating: PE Trainer at 4.0 against Image Ruler's 1.6. PE Trainer also leads on in-app purchases (none vs 7) and ads (none vs shown). Image Ruler's advantage is device support (3 vs 1). On price, ratings volume, monetization model and iOS requirement there is nothing between them.

Both are free to download. Image Ruler sells 5 one-off in-app purchases. PE Trainer asks for nothing beyond the download.

PE Trainer holds the better App Store score, 4.0 against 1.6. Both are backed by a comparable volume of ratings — 45 and 71 respectively. Written reviews point the same way: 18% of Image Ruler's written reviews are positive against 41% of PE Trainer's.

Image Ruler ships an update every 3 weeks, PE Trainer every 9 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Image Ruler | PE Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.6 (45 ratings)](https://appshunter.io/ios/app/image-ruler-measures/id1474481911/reviews) | **[4.0 (71 ratings)](https://appshunter.io/ios/app/pe-trainer/id6450663431/reviews)** |
| Number of ratings | 45 | **71** |
| Positive reviews | 17.6% of reviews | **41.2% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 47 MB | 28 MB |
| Requires iOS | **15.1** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Martin Schurmann](https://appshunter.io/developer/1469819101) | [Baseem LLC](https://appshunter.io/developer/1700882807) |

## 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 |


### PE Trainer

[App page](https://appshunter.io/ios/app/pe-trainer/id6450663431)

This app helps you manage your stretching routines with a timer, tracker, and reminder system. It's designed to ensure you consistently incorporate flexibility exercises into your day.

**Highlights:** Stretching timer, Routine tracking, Customizable reminders, Flexibility exercise support

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

**In-app purchases:** none


## Frequently asked questions

### Is Image Ruler free?

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

### Is PE Trainer free?

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

### Which has better reviews, Image Ruler or PE Trainer?

PE Trainer is rated higher. Image Ruler averages 1.6 out of 5 from 45 ratings, while PE Trainer averages 4.0 from 71 ratings.

### Do Image Ruler or PE Trainer have ads?

Image Ruler shows ads; PE Trainer does not.

### Which is updated more often, Image Ruler or PE Trainer?

Image Ruler ships an update every 3 weeks, and PE Trainer every 9 days. Most recently, Image Ruler was updated on October 24, 2026 and PE Trainer on October 30, 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.*