# Offline PDF Editor vs Unit Converter

The clearest difference is update cadence: Unit Converter at every 10 days against Offline PDF Editor's monthly. Unit Converter also leads on iOS requirement (13.0 vs 17.0). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Offline PDF Editor sells 4 in-app purchases, starting at $1.99 per 7 days and Unit Converter sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Offline PDF Editor ships an update monthly, Unit Converter every 10 days. The most recent releases landed on October 25, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Offline PDF Editor | Unit Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/offline-pdf-editor-properpdf/id6760956540/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | Freemium | — |
| Size | 40 MB | 25 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [CHIRANJEEVI PANDEY](https://appshunter.io/developer/1887013698) | [磊 刘](https://appshunter.io/developer/1892400556) |

## What reviewers say

### Offline PDF Editor

[App page](https://appshunter.io/ios/app/offline-pdf-editor-properpdf/id6760956540)

This app offers a comprehensive suite of PDF editing tools that operate entirely offline on your device. It allows you to merge, split, compress, convert, sign, and fill PDFs without needing an internet connection or uploading your files to the cloud. An AI chat feature is also available for summarizing and querying your documents locally.

**Highlights:** 100% Offline PDF Editing, Merge, Split, Compress PDFs, Convert PDF to Image, Sign and Fill Forms, On-device AI Chat, Password Protection, Zero Cloud Uploads

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProperPDF Pro — Weekly | $1.99 | per 7 days |
| ProperPDF Pro — Monthly | $3.99 | per month |
| ProperPDF Pro — Annual | $19.99 | per year |
| ProperPDF Pro - Lifetime Access | $29.99 | one-time |


### Unit Converter

[App page](https://appshunter.io/ios/app/unit-converter-free-and-easy/id6762030231)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unit Conversion Standard Version | $2.99 | one-time |
| Unit Conversion Pro Edition | $5.99 | one-time |


## Frequently asked questions

### Is Offline PDF Editor free?

Offline PDF Editor is free to download, with in-app purchases available.

### Is Unit Converter free?

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

### Do Offline PDF Editor or Unit Converter have ads?

Neither Offline PDF Editor nor Unit Converter shows ads.

### Which is updated more often, Offline PDF Editor or Unit Converter?

Offline PDF Editor ships an update monthly, and Unit Converter every 10 days. Most recently, Offline PDF Editor was updated on October 25, 2026 and Unit Converter on October 29, 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.*