# Inkelle vs PDF Studio

The clearest difference is update cadence: Inkelle at every 4 days against PDF Studio's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Inkelle sells 2 in-app purchases, starting at $5.99 per year 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.

Inkelle ships an update every 4 days, PDF Studio weekly. The most recent releases landed on October 31, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Inkelle | PDF Studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Size | 12 MB | 20 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [晗 林](https://appshunter.io/developer/1768801333) | [Birkan Aksoy](https://appshunter.io/developer/1626910993) |

## What reviewers say

### Inkelle

[App page](https://appshunter.io/ios/app/inkelle/id6774624375)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Inkelle Pro — Annual | $5.99 | per year |
| Inkelle Pro — Lifetime | $17.99 | one-time |


### PDF Studio

[App page](https://appshunter.io/ios/app/pdf-studio-editor-and-reader/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 Inkelle free?

Inkelle 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 Inkelle or PDF Studio have ads?

Neither Inkelle nor PDF Studio shows ads.

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

Inkelle ships an update every 4 days, and PDF Studio weekly. Most recently, Inkelle was updated on October 31, 2026 and PDF Studio on November 13, 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.*