# Ruler Professional vs Epic Ruler

The clearest difference is review sentiment: Ruler Professional at 57% against Epic Ruler's 0%. Ruler Professional also leads on rating (3.3 vs 1.0) and ads (none vs shown). Epic Ruler's advantage is in-app purchases (none vs 1). On price, ratings volume and monetization model there is nothing between them.

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

Ruler Professional holds the better App Store score, 3.3 against 1.0. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 57% of Ruler Professional's written reviews are positive against 0% of Epic Ruler's.

Ruler Professional ships an update every 6 months, Epic Ruler every 17 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Ruler Professional | Epic Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/ruler-professional/id527471088/reviews)** | [1.0 (4 ratings)](https://appshunter.io/ios/app/epic-ruler/id982728131/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | **57.1% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 17 months |
| Monetization | Free | Free |
| Size | 7 MB | 11 MB |
| Requires iOS | **10.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [KBIC International Ltd](https://appshunter.io/developer/505094094) | [Chih-Hao Chen](https://appshunter.io/developer/618207820) |

## 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 |


### Epic Ruler

[App page](https://appshunter.io/ios/app/epic-ruler/id982728131)

Transform your smartphone into a portable measuring tool. Accurately measure lengths in both inches and centimeters directly from your device.

**Highlights:** Converts phone to ruler, Measures in inches, Measures in centimeters, Pocket-sized utility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ruler Professional free?

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

### Is Epic Ruler free?

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

### Which has better reviews, Ruler Professional or Epic Ruler?

Ruler Professional is rated higher. Ruler Professional averages 3.3 out of 5 from 3 ratings, while Epic Ruler averages 1.0 from 4 ratings.

### Do Ruler Professional or Epic Ruler have ads?

Epic Ruler shows ads; Ruler Professional does not.

### Which is updated more often, Ruler Professional or Epic Ruler?

Ruler Professional ships an update every 6 months, and Epic Ruler every 17 months. Most recently, Ruler Professional was updated on September 29, 2026 and Epic Ruler on October 2, 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.*