# Ruler AR vs Document Scanner PDF Editor

The clearest difference is in-app purchases: Document Scanner PDF Editor at none against Ruler AR's 3. Document Scanner PDF Editor also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Ruler AR sells 3 in-app purchases, starting at $3.99 per month. Document Scanner PDF Editor asks for nothing beyond the download.

Ruler AR ships an update every 5 days, Document Scanner PDF Editor every 3 days. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Ruler AR | Document Scanner PDF Editor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (4 ratings)](https://appshunter.io/ios/app/ruler-ar-tape-measure-app/id6474717982/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | — |
| Size | 75 MB | 40 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Nhu Ngoc Le](https://appshunter.io/developer/1699316722) | [Jyotsnaben Varsani](https://appshunter.io/developer/1737420067) |

## What reviewers say

### Ruler AR

[App page](https://appshunter.io/ios/app/ruler-ar-tape-measure-app/id6474717982)

Measure real-world objects accurately using augmented reality. This app allows for length, width, and height measurements, even on non-flat surfaces. Save and review your measurements for future reference.

**Highlights:** Augmented reality measurements, Length, width, and height measurement, Measure on non-flat surfaces, Physical ruler feature, Multiple unit support, Save and archive measurements

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AR Ruler Premium Monthly | $3.99 | per month |
| AR Ruler Premium Yearly | $19.99 | per year |
| AR Ruler Premium Lifetime | $29.99 | one-time |


### Document Scanner PDF Editor

[App page](https://appshunter.io/ios/app/document-scanner-pdf-editor/id6502548674)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ruler AR free?

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

### Is Document Scanner PDF Editor free?

Document Scanner PDF Editor is free to download, with no in-app purchases.

### Do Ruler AR or Document Scanner PDF Editor have ads?

Ruler AR shows ads; Document Scanner PDF Editor does not.

### Which is updated more often, Ruler AR or Document Scanner PDF Editor?

Ruler AR ships an update every 5 days, and Document Scanner PDF Editor every 3 days. Most recently, Ruler AR was updated on October 24, 2026 and Document Scanner PDF Editor on October 27, 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.*