# Rul3r vs Wallpaper Size

The clearest difference is review sentiment: Wallpaper Size at 92% against Rul3r's 45%. Wallpaper Size also leads on update cadence (every 3 days vs every 2 months) and rating (4.8 vs 4.4). Rul3r's advantage is ratings volume (1.1K vs 22). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Rul3r sells 1 one-off in-app purchase and Wallpaper Size sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Wallpaper Size holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Rul3r has 1.1K ratings behind it against 22, so its average is the more settled of the two. Written reviews point the same way: 45% of Rul3r's written reviews are positive against 92% of Wallpaper Size's.

Rul3r ships an update every 2 months, Wallpaper Size every 3 days. Both last shipped on November 11, 2026.

## The numbers

| Metric | Rul3r | Wallpaper Size |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (1.1K ratings)](https://appshunter.io/ios/app/rul3r/id997746189/reviews) | **[4.8 (22 ratings)](https://appshunter.io/ios/app/wallpaper-size/id1435499335/reviews)** |
| Number of ratings | **1.1K** | 22 |
| Positive reviews | 45.5% of reviews | **92.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 55 MB |
| Requires iOS | **16.0** | 16.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YOYASOFT LLC](https://appshunter.io/developer/325345561) | [Kyung Hyun Park](https://appshunter.io/developer/1303604119) |

## What reviewers say

### Rul3r

[App page](https://appshunter.io/ios/app/rul3r/id997746189)

This utility app provides a portable ruler for on-the-go measurements. It also includes a suite of additional tools like a protractor, spirit level, and various meters for diverse measurement needs.

**Highlights:** Portable ruler, Protractor, Spirit level, Altimeter, Decibel meter, Plumb line

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


### Wallpaper Size

[App page](https://appshunter.io/ios/app/wallpaper-size/id1435499335)

This app helps you optimize wallpaper images to fit your screen perfectly, ensuring icons and time don't obscure your chosen background. It offers various tools to adjust image size, add effects like blur, and overlay elements such as calendars or barcodes.

**Highlights:** Adjust image size, Add background blur, Overlay calendar and barcode, Apply image filters, Adjust brightness and contrast, Add various visual effects, Crop image

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Erase Ads | $7.99 | one-time |


## Frequently asked questions

### Is Rul3r free?

Rul3r is free to download, with in-app purchases available.

### Is Wallpaper Size free?

Wallpaper Size is free to download, with in-app purchases available.

### Which has better reviews, Rul3r or Wallpaper Size?

Wallpaper Size is rated higher. Rul3r averages 4.4 out of 5 from 1.1K ratings, while Wallpaper Size averages 4.8 from 22 ratings.

### Do Rul3r or Wallpaper Size have ads?

Both Rul3r and Wallpaper Size show ads.

### Which is updated more often, Rul3r or Wallpaper Size?

Rul3r ships an update every 2 months, and Wallpaper Size every 3 days. Most recently, Rul3r was updated on November 11, 2026 and Wallpaper Size on November 11, 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.*