# StudyBrief vs PDF Extender

The clearest difference is iOS requirement: StudyBrief at 15.1 against PDF Extender's 17.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. StudyBrief sells 1 in-app purchase, starting at $4.99 per month and PDF Extender sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | StudyBrief | PDF Extender |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 33 MB | 7 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jannik Brose](https://appshunter.io/developer/1857491898) | [SB Labs](https://appshunter.io/developer/6808787098) |

## What reviewers say

### StudyBrief

[App page](https://appshunter.io/ios/app/studybrief-snap-and-study/id6760981528)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| StudyBrief: Quick & Compact | $4.99 | per month |


### PDF Extender

[App page](https://appshunter.io/ios/app/pdf-extender/id6808786886)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro freischalten | $2.99 | one-time |


## Frequently asked questions

### Is StudyBrief free?

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

### Is PDF Extender free?

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

### Do StudyBrief or PDF Extender have ads?

Neither StudyBrief nor PDF Extender shows ads.

---

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