# PDF ProX vs Simple Translator

The clearest difference is in-app purchases: Simple Translator at none against PDF ProX's 6. PDF ProX's advantage is update cadence (every 8 days vs every 4 weeks). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. PDF ProX sells 6 in-app purchases, starting at $19.99 per year. Simple Translator asks for nothing beyond the download.

PDF ProX ships an update every 8 days, Simple Translator every 4 weeks. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | PDF ProX | Simple Translator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (41 ratings)](https://appshunter.io/ios/app/pdf-prox-pdf-reader-and-editor/id6787909790/reviews)** | — |
| Number of ratings | **41** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 8 days** | Every 4 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 125 MB | 93 MB |
| Requires iOS | **16.0** | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ROOSTERX GLOBAL COMPANY LIMITED](https://appshunter.io/developer/6787909792) | [Fuzhou Moxing Technology Co., Ltd](https://appshunter.io/developer/6797777307) |

## What reviewers say

### PDF ProX

[App page](https://appshunter.io/ios/app/pdf-prox-pdf-reader-and-editor/id6787909790)

This app offers a comprehensive suite of tools for managing PDF documents on your iPhone. It allows you to read, edit, convert, scan, and even use AI to summarize, translate, and extract text from PDFs and other document formats.

**Highlights:** Read and manage PDF documents, Edit text, highlight, draw, and add notes, Convert between PDF and Office formats, Scan paper documents to PDF, AI summarization, translation, and OCR, Compress PDF file size, Password protect sensitive files

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF ProX: PDF Reader & Editor | $19.99 | per year |
| PDF ProX: PDF Reader & Editor | $19.99 | per year |
| PDF ProX: PDF Reader & Editor | $24.99 | per year |
| PDF ProX: PDF Reader & Editor | $24.99 | per year |
| PDF ProX: PDF Reader & Editor | $29.99 | per year |
| PDF ProX: PDF Reader & Editor | $29.99 | per year |


### Simple Translator

[App page](https://appshunter.io/ios/app/simple-translator-word-game/id6810127431)

This app offers quick language translation through various input methods like camera, voice, and text. It also includes a fun word-matching game to help users learn vocabulary and an English dictionary for quick lookups.

**Highlights:** Camera and photo translation, Real-time voice translation, Text translation with read-aloud, Vocabulary matching card game, English dictionary with definitions, Daily motivational quotes

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF ProX free?

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

### Is Simple Translator free?

Simple Translator is free to download, with no in-app purchases.

### Do PDF ProX or Simple Translator have ads?

Both PDF ProX and Simple Translator show ads.

### Which is updated more often, PDF ProX or Simple Translator?

PDF ProX ships an update every 8 days, and Simple Translator every 4 weeks. Most recently, PDF ProX was updated on November 8, 2026 and Simple Translator on October 31, 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.*