# PDF Translate vs InkStack

The clearest difference is in-app purchases: InkStack at none against PDF Translate's 5. PDF Translate's advantage is ads (none vs shown) and iOS requirement (15.1 vs 26.2). On price, update cadence and device support there is nothing between them.

Both are free to download. PDF Translate sells 5 in-app purchases, starting at $1.99 per 7 days. InkStack asks for nothing beyond the download.

PDF Translate ships an update every 2 weeks, InkStack every 3 weeks. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | PDF Translate | InkStack |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 38 MB | 17 MB |
| Requires iOS | **15.1** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ENES GENC](https://appshunter.io/developer/1853739091) | [Yogesh Rathod](https://appshunter.io/developer/1548316962) |

## What reviewers say

### PDF Translate

[App page](https://appshunter.io/ios/app/pdf-translate-in-any-language/id6760659818)

Instantly translate PDF documents and text into over 23 languages. This app offers a fast and simple way to understand foreign-language content, ideal for students, travelers, and professionals. Your documents are processed privately without requiring an account.

**Highlights:** Translate any PDF document, Quick text translation, Supports 23+ languages, Fast and simple interface, Private processing, no account needed, Premium features available

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Week Premium | $1.99 | per 7 days |
| 1 Month Premium | $2.99 | per month |
| 12 Month Premium | $9.99 | per year |
| 10 PDF Credit | $2.99 | one-time |
| Lifetime | $14.99 | one-time |


### InkStack

[App page](https://appshunter.io/ios/app/inkstack/id6806162103)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Translate free?

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

### Is InkStack free?

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

### Do PDF Translate or InkStack have ads?

InkStack shows ads; PDF Translate does not.

### Which is updated more often, PDF Translate or InkStack?

PDF Translate ships an update every 2 weeks, and InkStack every 3 weeks. Most recently, PDF Translate was updated on October 25, 2026 and InkStack on October 12, 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.*