# Hazelnote vs PDF Extender

The clearest difference is update cadence: Hazelnote at every 5 days against PDF Extender's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Hazelnote sells 4 in-app purchases, starting at $4.99 per 7 days and PDF Extender sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Hazelnote ships an update every 5 days, PDF Extender every 3 weeks. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Hazelnote | PDF Extender |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Size | 79 MB | 7 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Horize](https://appshunter.io/developer/1797319015) | [SB Labs](https://appshunter.io/developer/6808787098) |

## What reviewers say

### Hazelnote

[App page](https://appshunter.io/ios/app/hazelnote-ai-study-notes/id6757763746)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hazelnote Weekly | $4.99 | per 7 days |
| Hazelnote Monthly | $9.99 | per month |
| Hazelnote Annual | $49.99 | per year |
| Hazelnote Annual | $49.99 | per year |


### 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 Hazelnote free?

Hazelnote 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 Hazelnote or PDF Extender have ads?

Neither Hazelnote nor PDF Extender shows ads.

### Which is updated more often, Hazelnote or PDF Extender?

Hazelnote ships an update every 5 days, and PDF Extender every 3 weeks. Most recently, Hazelnote was updated on October 28, 2026 and PDF Extender on October 29, 2026.

---

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