# Zettelkasten vs Second Brain Link

The clearest difference is in-app purchases: Second Brain Link at none against Zettelkasten's 2. Second Brain Link also leads on iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Zettelkasten sells 2 in-app purchases, starting at $9.99 per 7 days. Second Brain Link asks for nothing beyond the download.

## The numbers

| Metric | Zettelkasten | Second Brain Link |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/zettelkasten-notes-graph/id6771281468/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Freemium | — |
| Size | 6 MB | 51 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Adrian Vicovan](https://appshunter.io/developer/6790683158) |

## What reviewers say

### Zettelkasten

[App page](https://appshunter.io/ios/app/zettelkasten-notes-graph/id6771281468)

This app creates a visual knowledge graph from your notes, allowing you to see and explore connections between ideas. It uses wiki-style linking and automatic backlinks to help you rediscover relationships and build a personal knowledge base without relying on traditional folders. Enjoy a private, ad-free experience where all your data stays on your device.

**Highlights:** Visual knowledge graph, Automatic backlinks, Wiki-style linking, Interactive orbit graph, Full-text search, Markdown export

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Yearly | $49.99 | per year |


### Second Brain Link

[App page](https://appshunter.io/ios/app/second-brain-link/id6790683156)

**In-app purchases:** none


## Frequently asked questions

### Is Zettelkasten free?

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

### Is Second Brain Link free?

Second Brain Link is free to download, with no in-app purchases.

### Do Zettelkasten or Second Brain Link have ads?

Neither Zettelkasten nor Second Brain Link 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.*