# Zettelkasten vs Memz LLM

The clearest difference is in-app purchases: Memz LLM at none against Zettelkasten's 2. Memz LLM also leads on update cadence (every 3 days vs monthly) and iOS requirement (13.0 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. Memz LLM asks for nothing beyond the download.

Zettelkasten ships an update monthly, Memz LLM every 3 days. The most recent releases landed on September 24, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Zettelkasten | Memz LLM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 days** |
| Size | 6 MB | 28 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Phuc Pham](https://appshunter.io/developer/1893081423) | [Jeongmin Kim](https://appshunter.io/developer/1866458100) |

## What reviewers say

### Zettelkasten

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

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

**In-app purchases (2)**

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


### Memz LLM

[App page](https://appshunter.io/ios/app/memz-llm/id6777074142)

**In-app purchases:** none


## Frequently asked questions

### Is Zettelkasten free?

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

### Is Memz LLM free?

Memz LLM is free to download, with no in-app purchases.

### Do Zettelkasten or Memz LLM have ads?

Neither Zettelkasten nor Memz LLM shows ads.

### Which is updated more often, Zettelkasten or Memz LLM?

Zettelkasten ships an update monthly, and Memz LLM every 3 days. Most recently, Zettelkasten was updated on September 24, 2026 and Memz LLM on September 14, 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.*