# Planviah vs Zettelkasten

The clearest difference is ads: Zettelkasten at none against Planviah's shown. Planviah's advantage is update cadence (every 9 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Planviah sells 2 in-app purchases, starting at $7.99 per month and Zettelkasten sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Planviah ships an update every 9 days, Zettelkasten monthly. Both last shipped on October 10, 2026.

## The numbers

| Metric | Planviah | Zettelkasten |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Monthly |
| Size | 42 MB | 6 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Planviah](https://appshunter.io/developer/1811786765) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## What reviewers say

### Planviah

[App page](https://appshunter.io/ios/app/planviah-student-planner/id6745328349)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $7.99 | per month |
| Year | $59.99 | per year |


### 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 |


## Frequently asked questions

### Is Planviah free?

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

### Is Zettelkasten free?

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

### Do Planviah or Zettelkasten have ads?

Planviah shows ads; Zettelkasten does not.

### Which is updated more often, Planviah or Zettelkasten?

Planviah ships an update every 9 days, and Zettelkasten monthly. Most recently, Planviah was updated on October 10, 2026 and Zettelkasten on October 10, 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.*