# Epic Ruler vs Ruler 2.0

The clearest difference is rating: Ruler 2.0 at 3.9 against Epic Ruler's 1.0. Ruler 2.0 also leads on ads (none vs shown) and review sentiment (30% vs 0%). On price, in-app purchases and monetization model there is nothing between them.

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

Ruler 2.0 holds the better App Store score, 3.9 against 1.0. That said, the two scores are not equally well evidenced: Ruler 2.0 has 205 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Epic Ruler's written reviews are positive against 30% of Ruler 2.0's.

Epic Ruler ships an update every 17 months, Ruler 2.0 every 5 months. The most recent releases landed on October 2, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Epic Ruler | Ruler 2.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (4 ratings)](https://appshunter.io/ios/app/epic-ruler/id982728131/reviews) | **[3.9 (205 ratings)](https://appshunter.io/ios/app/ruler-20-inch-mm-cm/id1345983397/reviews)** |
| Number of ratings | 4 | **205** |
| Positive reviews | 0.0% of reviews | **29.6% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 17 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 11 MB | 15 MB |
| Requires iOS | 26.0 | **12.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chih-Hao Chen](https://appshunter.io/developer/618207820) | [Oleg Osipov](https://appshunter.io/developer/1345983395) |

## What reviewers say

### 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


### Ruler 2.0

[App page](https://appshunter.io/ios/app/ruler-20-inch-mm-cm/id1345983397)

This app provides a precise on-screen measuring tool for your iPhone or iPad. Easily measure length and width in centimeters, millimeters, or inches, with options to save measurements as photos and customize the ruler's appearance. It's designed for accurate, user-friendly measurements.

**Highlights:** On-screen ruler, Measure length and width, Centimeters, millimeters, inches, Save measurements as photos, 3 ruler color options, Manual measurement adjustment

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 💡 Precise measurements (when working)
- ✨ Free with no ads
- ✅ Lightweight and small size
- 🎯 Good for small item measurements

**What reviewers complain about**

- 🐛 Frequent crashes
- 📏 Inaccurate measurements on newer phones
- 📱 Not optimized for high DPI screens
- 📉 Scale is off by ~50% on newer models
- ⚠️ Support link is shady

**Reported bugs**

- Crashes after a few seconds
- Keeps crashing
- Wrong scale/dimension measurement on newer iPhones (13, 14, 15 series, SE 2022)
- Inches are too small (e.g., 1cm shows as smaller than 4mm)
- Measurements are off by about half

**Requested features**

- Update for newer iPhone displays (high DPI)
- Manual adjustment for screen size/resolution
- Add option to manually enter dimensions
- Add inch fractions as measurement option
- Allow adjustable text font size when saving


## Frequently asked questions

### Is Epic Ruler free?

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

### Is Ruler 2.0 free?

Ruler 2.0 is free to download, with no in-app purchases.

### Which has better reviews, Epic Ruler or Ruler 2.0?

Ruler 2.0 is rated higher. Epic Ruler averages 1.0 out of 5 from 4 ratings, while Ruler 2.0 averages 3.9 from 205 ratings.

### Do Epic Ruler or Ruler 2.0 have ads?

Epic Ruler shows ads; Ruler 2.0 does not.

### Which is updated more often, Epic Ruler or Ruler 2.0?

Epic Ruler ships an update every 17 months, and Ruler 2.0 every 5 months. Most recently, Epic Ruler was updated on October 2, 2026 and Ruler 2.0 on October 24, 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.*