# Unit Convert Go vs PDF Compressor

The clearest difference is in-app purchases: Unit Convert Go at none against PDF Compressor's 1. Unit Convert Go also leads on ads (none vs shown) and update cadence (every 2 weeks vs every 4 months). PDF Compressor's advantage is iOS requirement (13.0 vs 16.0). On price and device support there is nothing between them.

Both are free to download. PDF Compressor sells 1 one-off in-app purchase. Unit Convert Go asks for nothing beyond the download.

Unit Convert Go ships an update every 2 weeks, PDF Compressor every 4 months. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Unit Convert Go | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free | — |
| Size | 3 MB | 50 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [晓 郭](https://appshunter.io/developer/1895645928) | [STE DIGI VIBES](https://appshunter.io/developer/1769242851) |

## What reviewers say

### Unit Convert Go

[App page](https://appshunter.io/ios/app/unit-convert-go/id6772014993)

This utility app offers fast, offline unit conversions for everyday needs. It supports a wide range of units including length, weight, temperature, and currency, with live, two-way conversion as you type. Favorite conversions can be pinned for quick access, and all data is kept private on your device.

**Highlights:** Live, two-way conversion, Offline-friendly, Pin favorite conversions, Recent conversions saved, Latest currency rates, Light and dark mode

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

**In-app purchases:** none


### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-merge-and-scan/id6782072361)

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Unit Convert Go free?

Unit Convert Go is free to download, with no in-app purchases.

### Is PDF Compressor free?

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

### Do Unit Convert Go or PDF Compressor have ads?

PDF Compressor shows ads; Unit Convert Go does not.

### Which is updated more often, Unit Convert Go or PDF Compressor?

Unit Convert Go ships an update every 2 weeks, and PDF Compressor every 4 months. Most recently, Unit Convert Go was updated on October 15, 2026 and PDF Compressor on October 25, 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.*