# PDFTranslator vs TransDoc AI

The clearest difference is update cadence: PDFTranslator at every 4 days against TransDoc AI's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDFTranslator sells 3 in-app purchases, starting at $0.99 per 7 days and TransDoc AI sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

PDFTranslator ships an update every 4 days, TransDoc AI monthly. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PDFTranslator | TransDoc AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Monthly |
| Size | 62 MB | 51 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [琳 李](https://appshunter.io/developer/1824200640) | [Ahmed Abdul Mujeeb Qhusro](https://appshunter.io/developer/1877449808) |

## What reviewers say

### PDFTranslator

[App page](https://appshunter.io/ios/app/pdftranslator-keep-layout/id6758367464)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Weekly | $0.99 | per 7 days |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $9.99 | per year |


### TransDoc AI

[App page](https://appshunter.io/ios/app/transdoc-ai-ai-translator/id6759211695)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Credits Pack | $18.99 | one-time |
| Large Credits Pack | $48.99 | one-time |


## Frequently asked questions

### Is PDFTranslator free?

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

### Is TransDoc AI free?

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

### Do PDFTranslator or TransDoc AI have ads?

Neither PDFTranslator nor TransDoc AI shows ads.

### Which is updated more often, PDFTranslator or TransDoc AI?

PDFTranslator ships an update every 4 days, and TransDoc AI monthly. Most recently, PDFTranslator was updated on October 26, 2026 and TransDoc AI on October 24, 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.*