# Ruler vs Measurement app for iPhone

The clearest difference is review sentiment: Measurement app for iPhone at 60% against Ruler's 14%. Measurement app for iPhone also leads on rating (4.8 vs 4.2) and update cadence (every 2 weeks vs every 14 months). Ruler's advantage is in-app purchases (none vs 4) and ratings volume (405 vs 108). On price, ads and device support there is nothing between them.

Both are free to download. Measurement app for iPhone sells 4 in-app purchases, starting at $9.99 per 7 days. Ruler asks for nothing beyond the download.

Measurement app for iPhone holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 405 and 108 respectively. Written reviews point the same way: 14% of Ruler's written reviews are positive against 60% of Measurement app for iPhone's.

Ruler ships an update every 14 months, Measurement app for iPhone every 2 weeks. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Ruler | Measurement app for iPhone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (405 ratings)](https://appshunter.io/ios/app/ruler/id1555214809/reviews) | **[4.8 (108 ratings)](https://appshunter.io/ios/app/measurement-app-for-iphone/id1586541589/reviews)** |
| Number of ratings | **405** | 108 |
| Positive reviews | 14.3% of reviews | **60.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 19 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Matrix Software Co.](https://appshunter.io/developer/1457004046) | [Elard Tissot](https://appshunter.io/developer/1378750022) |

## What reviewers say

### 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


### Measurement app for iPhone

[App page](https://appshunter.io/ios/app/measurement-app-for-iphone/id1586541589)

This augmented reality app transforms your phone into a versatile measuring tool. Accurately measure length, area, and height of objects using your device's camera. Supports various units and saves your measurements for later reference.

**Highlights:** Augmented reality measurement, Tape measure, area, and height tools, Ruler tool for small objects, Save and view measurements, Imperial and metric units, Integrated flashlight

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan: All Features | $9.99 | per 7 days |
| Monthly Plan: All Features | $14.99 | per month |
| Annual Plan: All Features | $29.99 | per year |
| Lifetime: Pay Only Once | $49.99 | one-time |


## Frequently asked questions

### Is Ruler free?

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

### Is Measurement app for iPhone free?

Measurement app for iPhone is free to download, with in-app purchases available.

### Which has better reviews, Ruler or Measurement app for iPhone?

Measurement app for iPhone is rated higher. Ruler averages 4.2 out of 5 from 405 ratings, while Measurement app for iPhone averages 4.8 from 108 ratings.

### Do Ruler or Measurement app for iPhone have ads?

Both Ruler and Measurement app for iPhone show ads.

### Which is updated more often, Ruler or Measurement app for iPhone?

Ruler ships an update every 14 months, and Measurement app for iPhone every 2 weeks. Most recently, Ruler was updated on September 26, 2026 and Measurement app for iPhone on September 10, 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.*