# Unlimited vs Ruler

The clearest difference is rating: Ruler at 4.2 against Unlimited's 3.3. Ruler also leads on ratings volume (422 vs 60). Unlimited's advantage is ads (none vs shown) and review sentiment (48% vs 15%). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ruler holds the better App Store score, 4.2 against 3.3. That said, the two scores are not equally well evidenced: Ruler has 422 ratings behind it against 60, so its average is the more settled of the two. Written reviews complicate that: 48% of Unlimited's written reviews are positive against 15% of Ruler's, so the app with the better star average is not the one people write more warmly about.

Unlimited ships an update every 3 weeks, Ruler every 14 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Unlimited | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (60 ratings)](https://appshunter.io/ios/app/unlimited-length-visual-ruler/id1159176045/reviews) | **[4.2 (422 ratings)](https://appshunter.io/ios/app/ruler/id1555214809/reviews)** |
| Number of ratings | 60 | **422** |
| Positive reviews | **48.0% of reviews** | 15.2% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 14 months |
| Monetization | **Free** | Ad-supported |
| Size | 22 MB | 6 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [齐 陈](https://appshunter.io/developer/455625305) | [Matrix Software Co.](https://appshunter.io/developer/1457004046) |

## What reviewers say

### Unlimited

[App page](https://appshunter.io/ios/app/unlimited-length-visual-ruler/id1159176045)

Transform your device into an extended measuring tool. This application allows you to measure objects of any length directly on your screen, supporting both inches and centimeters. Its intuitive interface makes precise measurements simple.

**Highlights:** Unlimited-length measurement, Inch and centimeter support, Back to top function, Unit switching, Easy to use interface, Attractive UI

**Features:** macOS Compatibility

**In-app purchases:** none


### Ruler

[App page](https://appshunter.io/ios/app/ruler/id1555214809)

Measure objects and distances with an on-screen ruler and augmented reality. Supports inches and centimeters, with features for linear sizes, angles, area, volume, and more. Save your measurements for later use.

**Highlights:** On-screen ruler for small objects, Augmented Reality (AR) measuring, Measure linear sizes in cm/inches, Calculate angles, area, and volume, Save measurements, Generate plan projections

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

**In-app purchases:** none

**What reviewers like**

- 👍 Basic caliper and spirit level included
- ✅ Option to opt-out of data selling/sharing
- 👌 Accurate measurements (Arabic review)

**What reviewers complain about**

- 📏 Inaccurate measurements
- 💥 Frequent app crashes
- 💸 Limited free functionality (5" limit)
- 🚫 Cannot switch to metric (cm)
- 🤷 Unclear AR mode usage

**Reported bugs**

- App crashes on iPhone 17 and iPad
- App crashes within 1 minute
- AR mode not functional
- Cannot switch to cm
- Measurements are out of scale

**Requested features**

- Fix crashing issues
- Enable switching to metric (cm)
- Improve AR mode usability
- Add save and print functionality
- Provide usage instructions


## Frequently asked questions

### Is Unlimited free?

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

### Is Ruler free?

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

### Which has better reviews, Unlimited or Ruler?

Ruler is rated higher. Unlimited averages 3.3 out of 5 from 60 ratings, while Ruler averages 4.2 from 422 ratings.

### Do Unlimited or Ruler have ads?

Ruler shows ads; Unlimited does not.

### Which is updated more often, Unlimited or Ruler?

Unlimited ships an update every 3 weeks, and Ruler every 14 months. Most recently, Unlimited was updated on November 6, 2026 and Ruler on November 7, 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.*