# Linked Notes vs Chat PDF Summary

Linked Notes and Chat PDF Summary are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Linked Notes sells 1 one-off in-app purchase and Chat PDF Summary sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Linked Notes | Chat PDF Summary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 8 months |
| Size | 1 MB | 9 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Hangzhou Luanlu Several Network Technology Co., Ltd](https://appshunter.io/developer/473550287) | [Jose Sapon](https://appshunter.io/developer/1833571607) |

## What reviewers say

### Linked Notes

[App page](https://appshunter.io/ios/app/linked-notes-bi-directional/id6745773418)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Linked Notes Pro | $0.99 | one-time |


### Chat PDF Summary

[App page](https://appshunter.io/ios/app/chat-pdf-summary-ai-summarize/id6758478401)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Version | $2.99 | one-time |
| Small Credits Pack | $4.99 | one-time |
| Medium Credits Pack | $6.99 | one-time |
| Large Credits Pack | $8.99 | one-time |


## Frequently asked questions

### Is Linked Notes free?

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

### Is Chat PDF Summary free?

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

### Do Linked Notes or Chat PDF Summary have ads?

Neither Linked Notes nor Chat PDF Summary shows ads.

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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.*