# Photo Measures Lite vs 100cm Ruler

The clearest difference is rating: 100cm Ruler at 4.0 against Photo Measures Lite's 2.2. Photo Measures Lite's advantage is in-app purchases (none vs 1) and ratings volume (31 vs 1). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. 100cm Ruler sells 1 one-off in-app purchase. Photo Measures Lite asks for nothing beyond the download.

100cm Ruler holds the better App Store score, 4.0 against 2.2. That said, the two scores are not equally well evidenced: Photo Measures Lite has 31 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 52% of Photo Measures Lite's written reviews are positive against 45% of 100cm Ruler's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 23, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Photo Measures Lite | 100cm Ruler |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (31 ratings)](https://appshunter.io/ios/app/photo-measures-lite/id417222688/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/100cm-ruler/id982815744/reviews)** |
| Number of ratings | **31** | 1 |
| Positive reviews | **51.6% of reviews** | 45.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 62 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cubent](https://appshunter.io/developer/1385727984) | [ZOOMO Inc.](https://appshunter.io/developer/490112424) |

## What reviewers say

### Photo Measures Lite

[App page](https://appshunter.io/ios/app/photo-measures-lite/id417222688)

Easily capture photos and annotate them with precise measurements, dimensions, and text notes. Ideal for home improvement, design, or real estate projects, ensuring you always have accurate spatial information at your fingertips.

**Highlights:** Draw measures directly on photos, Zoom for precision, Add text comments, Support for angles, Imperial or metric units, Organize photos by category, Export high-resolution dimensions

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

**In-app purchases:** none


### 100cm Ruler

[App page](https://appshunter.io/ios/app/100cm-ruler/id982815744)

This app provides a digital ruler for measuring the length and diameter of small objects directly on your device. It features a millimeter scale and allows for easy sliding to measure.

**Highlights:** Digital ruler functionality, Millimeter scale, Diameter measurement, Screen sliding for measurement, Ad removal option

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADS | $1.99 | one-time |


## Frequently asked questions

### Is Photo Measures Lite free?

Photo Measures Lite is free to download, with no in-app purchases.

### Is 100cm Ruler free?

100cm Ruler is free to download, with in-app purchases available.

### Which has better reviews, Photo Measures Lite or 100cm Ruler?

100cm Ruler is rated higher. Photo Measures Lite averages 2.2 out of 5 from 31 ratings, while 100cm Ruler averages 4.0 from 1 ratings.

### Do Photo Measures Lite or 100cm Ruler have ads?

Neither Photo Measures Lite nor 100cm Ruler shows ads.

### Which is updated more often, Photo Measures Lite or 100cm Ruler?

Photo Measures Lite ships an update every 3 months, and 100cm Ruler every 3 months. Most recently, Photo Measures Lite was updated on October 23, 2026 and 100cm Ruler on October 14, 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.*