# Screen Ruler vs Calculate

The clearest difference is in-app purchases: Calculate at none against Screen Ruler's 2. Calculate also leads on ads (none vs shown). Screen Ruler's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Screen Ruler sells 2 one-off in-app purchases. Calculate asks for nothing beyond the download.

## The numbers

| Metric | Screen Ruler | Calculate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (26 ratings)](https://appshunter.io/ios/app/screen-ruler-measure-length/id1174757735/reviews)** | — |
| Number of ratings | **26** | — |
| Positive reviews | 53.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 2 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [向阳 杨](https://appshunter.io/developer/1174757734) | [Simon Dinh](https://appshunter.io/developer/6781219291) |

## What reviewers say

### Screen Ruler

[App page](https://appshunter.io/ios/app/screen-ruler-measure-length/id1174757735)

Transform your iPhone or iPad into a digital ruler. Measure small objects directly on your screen using centimeters or inches, with magnifier assistance and haptic feedback for precise alignment. Calibrate the ruler for accurate results.

**Highlights:** Calibratable digital ruler, Centimeter and inch scales, Magnifier for precise alignment, Haptic feedback, Measure small objects on screen

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads-free experience | $1.99 | one-time |
| Support for a cup of coffee | $2.99 | one-time |


### Calculate

[App page](https://appshunter.io/ios/app/calculate/id6781219049)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Screen Ruler free?

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

### Is Calculate free?

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

### Do Screen Ruler or Calculate have ads?

Screen Ruler shows ads; Calculate does not.

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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.*