# Ruler Professional vs Ruler+ Utility

The clearest difference is ads: Ruler Professional at none against Ruler+ Utility's shown. Ruler Professional also leads on update cadence (every 6 months vs every 40 months) and monetization model (free vs free with in-app purchases). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Ruler Professional sells 1 one-off in-app purchase and Ruler+ Utility sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Ruler Professional holds the better App Store score, 3.3 against 3.0. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews point the same way: 57% of Ruler Professional's written reviews are positive against 47% of Ruler+ Utility's.

Ruler Professional ships an update every 6 months, Ruler+ Utility every 40 months. The most recent releases landed on June 2, 2026 and September 3, 2026 respectively.

## The numbers

| Metric | Ruler Professional | Ruler+ Utility |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/ruler-professional/id527471088/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/ruler-plus-utility/id1017729457/reviews) |
| Number of ratings | **3** | 2 |
| Positive reviews | **57.1% of reviews** | 46.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 40 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 24 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KBIC International Ltd](https://appshunter.io/developer/505094094) | [Kyungjin Lee](https://appshunter.io/developer/572393811) |

## What reviewers say

### Ruler Professional

[App page](https://appshunter.io/ios/app/ruler-professional/id527471088)

Transform your iOS device into a versatile measuring tool. Accurately measure lengths in both centimeters and inches using on-screen markers. Ideal for quick, on-the-go measurements.

**Highlights:** Device as a ruler, Metric and imperial units, Adjustable measurement markers, Real-time distance display

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad Removal | $0.99 | one-time |


### 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 |


## Frequently asked questions

### Is Ruler Professional free?

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

### Is Ruler+ Utility free?

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

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

Ruler Professional is rated higher. Ruler Professional averages 3.3 out of 5 from 3 ratings, while Ruler+ Utility averages 3.0 from 2 ratings.

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

Ruler+ Utility shows ads; Ruler Professional does not.

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

Ruler Professional ships an update every 6 months, and Ruler+ Utility every 40 months. Most recently, Ruler Professional was updated on June 2, 2026 and Ruler+ Utility on September 3, 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.*