# RulerBasic vs PDF Studio

The clearest difference is in-app purchases: PDF Studio at none against RulerBasic's 4. RulerBasic's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. RulerBasic sells 4 in-app purchases, starting at $2.99 per month. PDF Studio asks for nothing beyond the download.

RulerBasic ships an update fortnightly, PDF Studio monthly. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RulerBasic | PDF Studio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-studio-pdf-converter/id6752782661/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | — | Free with in-app purchases |
| Size | 15 MB | 46 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Hakan Kaba](https://appshunter.io/developer/1830840381) | [Asha Vaghasiya](https://appshunter.io/developer/1840923272) |

## What reviewers say

### RulerBasic

[App page](https://appshunter.io/ios/app/rulerbasic/id6752628913)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Room Scan Pro | $2.99 | per month |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### PDF Studio

[App page](https://appshunter.io/ios/app/pdf-studio-pdf-converter/id6752782661)

This app offers a comprehensive suite of tools for managing PDF files on your iPhone. It allows you to edit, compress, convert, scan, protect, and organize your documents entirely on your device for maximum privacy.

**Highlights:** Edit and organize PDF pages, Convert PDF to Text, HTML, Excel, JPG, PNG, BMP, Compress PDF file size, Merge and split PDF documents, Scan documents with camera, Add password protection and signatures, Convert images to PDF

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

**In-app purchases:** none


## Frequently asked questions

### Is RulerBasic free?

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

### Is PDF Studio free?

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

### Do RulerBasic or PDF Studio have ads?

PDF Studio shows ads; RulerBasic does not.

### Which is updated more often, RulerBasic or PDF Studio?

RulerBasic ships an update fortnightly, and PDF Studio monthly. Most recently, RulerBasic was updated on October 10, 2026 and PDF Studio on October 24, 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.*