# Ruler+ Utility vs Ruler

The clearest difference is in-app purchases: Ruler at none against Ruler+ Utility's 1. Ruler also leads on rating (3.5 vs 3.0) and update cadence (every 3 weeks vs every 40 months). Ruler+ Utility's advantage is iOS requirement (13.0 vs 17.0). On price, review sentiment, ads and monetization model there is nothing between them.

Both are free to download. Ruler+ Utility sells 1 one-off in-app purchase. Ruler asks for nothing beyond the download.

Ruler holds the better App Store score, 3.5 against 3.0. That said, the two scores are not equally well evidenced: Ruler has 79 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 47% of Ruler+ Utility's written reviews are positive against 40% of Ruler's, so the app with the better star average is not the one people write more warmly about.

Ruler+ Utility ships an update every 40 months, Ruler every 3 weeks. Both last shipped on November 1, 2026.

## The numbers

| Metric | Ruler+ Utility | Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/ruler-plus-utility/id1017729457/reviews) | **[3.5 (79 ratings)](https://appshunter.io/ios/app/ruler-cm-mm-inches/id1022857549/reviews)** |
| Number of ratings | 2 | **79** |
| Positive reviews | **46.7% of reviews** | 40.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 40 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kyungjin Lee](https://appshunter.io/developer/572393811) | [Noadit, Inc.](https://appshunter.io/developer/1516754355) |

## What reviewers say

### Ruler+ Utility

[App page](https://appshunter.io/ios/app/ruler-plus-utility/id1017729457)

Transform your smartphone into a versatile measuring tool. Instantly measure the length of objects using your phone's screen, with options for fixed or scroll modes. Save your measurements and choose between centimeters or inches for precise results.

**Highlights:** Smartphone ruler, Fixed and scroll measurement modes, Save measurements, Centimeter and inch support, Fine-tune scale, Intuitive interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### Ruler

[App page](https://appshunter.io/ios/app/ruler-cm-mm-inches/id1022857549)

Measure lengths, widths, and diagonals accurately using your phone. Switch between metric and imperial units, and utilize flexible starting points for precise measurements in any direction. Features auto-calibration for minimal error and a screen lock to preserve readings.

**Highlights:** Multi-mode measurement (CM, MM, Inches, Fractions), Flexible starting points, Full-direction measurement (horizontal, vertical, diagonal), Auto-calibration for accuracy, Screen lock for preserving readings, Ad-free VIP option

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 📏 Accurate measurements (for some)
- 💡 Useful for small objects
- ✨ Clean interface
- 🚀 Fluid performance

**What reviewers complain about**

- 😠 Excessive and intrusive ads
- 🚫 Ads block measurements
- 🔊 Loud and shocking ads
- 💸 No option to pay for ad-free (or purchase lost)
- 📉 Inaccurate inch measurements (decimal vs. fractional)

**Reported bugs**

- Ads pop up constantly, making app unusable
- Ads overlay the ruler/measurements
- App crashes constantly
- Black screen issue
- Inaccurate measurements (especially inches)

**Requested features**

- Option to remove ads via one-time purchase
- Ability to calibrate the ruler
- Offset crosshairs to see numbers
- Fractional inch (1/8, 1/16) display option
- Option to hide ruler digits


## Frequently asked questions

### Is Ruler+ Utility free?

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

### Is Ruler free?

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

### Which has better reviews, Ruler+ Utility or Ruler?

Ruler is rated higher. Ruler+ Utility averages 3.0 out of 5 from 2 ratings, while Ruler averages 3.5 from 79 ratings.

### Do Ruler+ Utility or Ruler have ads?

Both Ruler+ Utility and Ruler show ads.

### Which is updated more often, Ruler+ Utility or Ruler?

Ruler+ Utility ships an update every 40 months, and Ruler every 3 weeks. Most recently, Ruler+ Utility was updated on November 1, 2026 and Ruler on November 1, 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.*