# ZooMark vs Cairn

The clearest difference is update cadence: ZooMark at every 2 days against Cairn's every 6 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ZooMark ships an update every 2 days, Cairn every 6 days. The most recent releases landed on October 1, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | ZooMark | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cairn-markdown-tasks/id6786663000/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Monetization | — | Free |
| Size | 13 MB | 9 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sangwook Joo](https://appshunter.io/developer/6780354751) | [Young Hun JEONG](https://appshunter.io/developer/6786662344) |

## What reviewers say

### ZooMark

[App page](https://appshunter.io/ios/app/zoomark/id6781181377)

**Features:** Vision Pro support

**In-app purchases:** none


### Cairn

[App page](https://appshunter.io/ios/app/cairn-markdown-tasks/id6786663000)

Manage tasks and notes directly within your existing Markdown files. This app offers focused views, quick capture, and robust task management features, all while keeping your data private and locally stored. It integrates seamlessly with Obsidian and other file sync services.

**Highlights:** Native Markdown task and note management, Works with Obsidian vaults or any folder, Quick capture with date, tag, and priority parsing, Multiple task views (Today, Upcoming, Inbox, Pool), Full support for sub-tasks and recurring tasks, Local reminders and Live Activity integration, Data stays local, no cloud sync required

**In-app purchases:** none


## Frequently asked questions

### Is ZooMark free?

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

### Is Cairn free?

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

### Do ZooMark or Cairn have ads?

Neither ZooMark nor Cairn shows ads.

### Which is updated more often, ZooMark or Cairn?

ZooMark ships an update every 2 days, and Cairn every 6 days. Most recently, ZooMark was updated on October 1, 2026 and Cairn on October 17, 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.*