# PlainPDF vs PDF Studio

The clearest difference is ads: PDF Studio at none against PlainPDF's shown. PDF Studio also leads on update cadence (every 9 days vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. PlainPDF sells 1 one-off in-app purchase and PDF Studio sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

PlainPDF ships an update every 2 months, PDF Studio every 9 days. The most recent releases landed on November 10, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | PlainPDF | PDF Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 9 MB | 18 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Swaminathan L](https://appshunter.io/developer/1193474389) | [Birkan Aksoy](https://appshunter.io/developer/1626910993) |

## What reviewers say

### PlainPDF

[App page](https://appshunter.io/ios/app/plainpdf-scanner-and-pdf-editor/id6780193988)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PlainPDF Pro | $4.99 | one-time |


### PDF Studio

[App page](https://appshunter.io/ios/app/pdf-studio-reader-and-tools/id6781038759)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Studio Pro | $9.99 | per year |
| PDF Studio Pro (Lifetime) | $24.99 | one-time |


## Frequently asked questions

### Is PlainPDF free?

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

### Is PDF Studio free?

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

### Do PlainPDF or PDF Studio have ads?

PlainPDF shows ads; PDF Studio does not.

### Which is updated more often, PlainPDF or PDF Studio?

PlainPDF ships an update every 2 months, and PDF Studio every 9 days. Most recently, PlainPDF was updated on November 10, 2026 and PDF Studio on November 5, 2026.

---

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