# Ruler® vs Screen Ruler

The clearest difference is rating: Ruler® at 4.3 against Screen Ruler's 3.7. Ruler® also leads on ads (none vs shown) and ratings volume (35K vs 24). Screen Ruler's advantage is review sentiment (55% vs 22%) and iOS requirement (13.0 vs 15.0). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Ruler® sells 2 in-app purchases, starting at $1.99 per 7 days and Screen Ruler sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Ruler® holds the better App Store score, 4.3 against 3.7. That said, the two scores are not equally well evidenced: Ruler® has 35K ratings behind it against 24, so its average is the more settled of the two. Written reviews complicate that: 22% of Ruler®'s written reviews are positive against 55% of Screen Ruler's, so the app with the better star average is not the one people write more warmly about.

Ruler® ships an update every 6 weeks, Screen Ruler every 3 months. The most recent releases landed on September 24, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Ruler® | Screen Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (35K ratings)](https://appshunter.io/ios/app/ruler/id623207505/reviews)** | [3.7 (24 ratings)](https://appshunter.io/ios/app/screen-ruler-measure-length/id1174757735/reviews) |
| Number of ratings | **35K** | 24 |
| Positive reviews | 21.9% of reviews | **54.8% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 25 MB | 19 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +4 |
| Developer | [Tue Nguyen Minh](https://appshunter.io/developer/434811167) | [向阳 杨](https://appshunter.io/developer/1174757734) |

## What reviewers say

### Ruler®

[App page](https://appshunter.io/ios/app/ruler/id623207505)

This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.

**Highlights:** Classic ruler and tape measure, Camera ruler mode, Photo measures mode, Dual unit support (inches/cm), Precision sliders for small objects, Elegant and user-friendly interface

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ruler Pro (Weekly) | $1.99 | per 7 days |
| Pro Features | $1.99 | one-time |

**What reviewers like**

- 🚀 Accurate measurements
- 👍 Easy to use
- 🔍 Convenient for small items
- 📏 Useful ruler tool

**What reviewers complain about**

- 💰 Paywall for basic features
- ⏱️ Limited free usage time
- 🔍 Inaccurate for larger objects
- 🙅‍♀️ Aggressive monetization tactics

**Reported bugs**

- Inconsistent measurements
- Compatibility issues with newer devices

**Requested features**

- Ability to switch between metric and imperial units without paying
- Improved accuracy for larger measurements
- Removal of time limits on free usage


### Screen Ruler

[App page](https://appshunter.io/ios/app/screen-ruler-measure-length/id1174757735)

Turn your iPhone or iPad into a precise measuring tool. Easily measure lengths in centimeters or inches with features like magnifier mode and haptic feedback. Ideal for daily tasks, office use, DIY projects, and on-the-go measurements.

**Highlights:** Dual units (cm/inches), Precision calibration, Magnifier mode, Haptic feedback, Clean interface, Save and label measurements

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads-free experience | $1.99 | one-time |
| Support for a cup of coffee | $2.99 | one-time |


## Frequently asked questions

### Is Ruler® free?

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

### Is Screen Ruler free?

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

### Which has better reviews, Ruler® or Screen Ruler?

Ruler® is rated higher. Ruler® averages 4.3 out of 5 from 35K ratings, while Screen Ruler averages 3.7 from 24 ratings.

### Do Ruler® or Screen Ruler have ads?

Screen Ruler shows ads; Ruler® does not.

### Which is updated more often, Ruler® or Screen Ruler?

Ruler® ships an update every 6 weeks, and Screen Ruler every 3 months. Most recently, Ruler® was updated on September 24, 2026 and Screen Ruler on September 20, 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.*