# Quick PDF vs Co Translation

The clearest difference is ads: Co Translation at none against Quick PDF's shown. Co Translation also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick PDF ships an update every 3 weeks, Co Translation every 2 weeks. The most recent releases landed on September 21, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Quick PDF | Co Translation |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (3 ratings)](https://appshunter.io/ios/app/quick-pdf-reader-and-viewer/id6741830741/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 84 MB | 111 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [子寒 汪](https://appshunter.io/developer/1718260088) | [ZFZB](https://appshunter.io/developer/1736906632) |

## What reviewers say

### Quick PDF

[App page](https://appshunter.io/ios/app/quick-pdf-reader-and-viewer/id6741830741)

This application allows users to read, create, and edit PDF files. It also includes a QR code scanner for quick access to information. Manage your documents efficiently with its user-friendly interface.

**Highlights:** PDF Viewing, PDF Editing, QR Code Scanning, Document Organization, User-Friendly Interface

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

**In-app purchases:** none


### Co Translation

[App page](https://appshunter.io/ios/app/co-translation/id6754668873)

Break down language barriers with this free translation app. It offers text, voice, and image translation, along with a history feature to manage past translations. An interactive guide helps new users get started.

**Highlights:** Text translation, Voice translation, Image translation, Translation history, Interactive newbie guide

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

**In-app purchases:** none


## Frequently asked questions

### Is Quick PDF free?

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

### Is Co Translation free?

Co Translation is free to download, with no in-app purchases.

### Do Quick PDF or Co Translation have ads?

Quick PDF shows ads; Co Translation does not.

### Which is updated more often, Quick PDF or Co Translation?

Quick PDF ships an update every 3 weeks, and Co Translation every 2 weeks. Most recently, Quick PDF was updated on September 21, 2026 and Co Translation on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*