# Ruler / Measuring Tape vs iScan

The clearest difference is ads: Ruler / Measuring Tape at none against iScan's shown. Ruler / Measuring Tape also leads on iOS requirement (16.0 vs 18.0). iScan's advantage is update cadence (every 9 days vs every 4 months). On price, in-app purchases and device support there is nothing between them.

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

Ruler / Measuring Tape ships an update every 4 months, iScan every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Ruler / Measuring Tape | iScan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (238 ratings)](https://appshunter.io/ios/app/ruler-measuring-tape/id1262452961/reviews)** | — |
| Number of ratings | **238** | — |
| Positive reviews | 50.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 6 MB | 8 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Clafou Ltd](https://appshunter.io/developer/424537553) | [kenta isomi](https://appshunter.io/developer/1341688120) |

## What reviewers say

### Ruler / Measuring Tape

[App page](https://appshunter.io/ios/app/ruler-measuring-tape/id1262452961)

Measure objects using your device's screen, augmented reality, or by printing a ruler. Offers three distinct methods for on-demand measurement without physical tools.

**Highlights:** Measure against screen, Augmented reality measurement, Printable ruler via AirPrint, ARKit integration, No ads or in-app purchases

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 📏 Accurate measurements (for some)
- 🆓 Free with no ads
- 💡 AR ruler functionality
- ✨ Clean interface

**What reviewers complain about**

- 🐛 Inaccurate measurements
- 🐛 Doesn't detect surfaces
- 🐛 Slow to analyze
- 🐛 Difficult to use
- 🐛 Not suitable for large objects

**Reported bugs**

- Cannot accurately measure anything
- Force turns off the flashlight
- Shows totally wrong scale on iPhone 15 Pro Max
- cm and inch are in reverse directions
- Ne s’adapte pas au zoom de l’écran

**Requested features**

- Option to change ruler pips (16/1, 8/1)
- Scrolling ruler for longer objects
- Button to turn on flashlight
- Compatibility for iPad Air 2
- Tutorial or instructions


### iScan

[App page](https://appshunter.io/ios/app/iscan-d/id6808693111)

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

**In-app purchases:** none


## Frequently asked questions

### Is Ruler / Measuring Tape free?

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

### Is iScan free?

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

### Do Ruler / Measuring Tape or iScan have ads?

iScan shows ads; Ruler / Measuring Tape does not.

### Which is updated more often, Ruler / Measuring Tape or iScan?

Ruler / Measuring Tape ships an update every 4 months, and iScan every 9 days. Most recently, Ruler / Measuring Tape was updated on November 6, 2026 and iScan on October 31, 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.*