# PDF Editor vs UnderLimit

The clearest difference is in-app purchases: PDF Editor at none against UnderLimit's 1. UnderLimit's advantage is update cadence (every 2 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. UnderLimit sells 1 one-off in-app purchase. PDF Editor asks for nothing beyond the download.

PDF Editor ships an update every 2 months, UnderLimit every 2 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | PDF Editor | UnderLimit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/pdf-editor-converter-and-merger/id6758532990/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 5 MB | 4 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ha Do Thi Thu](https://appshunter.io/developer/1707030622) | [ALESSANDRO VINCENZO DEL BALZO](https://appshunter.io/developer/6813135046) |

## What reviewers say

### PDF Editor

[App page](https://appshunter.io/ios/app/pdf-editor-converter-and-merger/id6758532990)

Easily create and manage PDF documents directly on your iPhone. Convert images to PDFs, merge multiple files, split documents, and organize pages with a simple, fast workflow. Reduce file sizes and add watermarks for secure sharing.

**Highlights:** Image to PDF conversion, Merge and split PDFs, Organize pages, Compress PDF size, Add watermarks, Webpage to PDF conversion

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

**In-app purchases:** none


### UnderLimit

[App page](https://appshunter.io/ios/app/underlimit-pdf-compressor/id6813135044)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UnderLimit Unlimited | $2.99 | one-time |


## Frequently asked questions

### Is PDF Editor free?

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

### Is UnderLimit free?

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

### Do PDF Editor or UnderLimit have ads?

Neither PDF Editor nor UnderLimit shows ads.

### Which is updated more often, PDF Editor or UnderLimit?

PDF Editor ships an update every 2 months, and UnderLimit every 2 days. Most recently, PDF Editor was updated on November 5, 2026 and UnderLimit on November 6, 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.*