# Data Tree Manager vs Cairn

The clearest difference is update cadence: Cairn at every 5 days against Data Tree Manager's every 3 weeks. Data Tree Manager's advantage is iOS requirement (14.0 vs 17.0). 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.

Data Tree Manager ships an update every 3 weeks, Cairn every 5 days. The most recent releases landed on September 24, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Data Tree Manager | 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 3 weeks | **Every 5 days** |
| Monetization | — | Free |
| Size | 2 MB | 9 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Vsevolod Migdisov](https://appshunter.io/developer/987566323) | [Young Hun JEONG](https://appshunter.io/developer/6786662344) |

## What reviewers say

### Data Tree Manager

[App page](https://appshunter.io/ios/app/data-tree-manager/id1527102683)

**Features:** macOS Compatibility

**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 Data Tree Manager free?

Data Tree Manager is free to download, with no in-app purchases.

### Is Cairn free?

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

### Do Data Tree Manager or Cairn have ads?

Neither Data Tree Manager nor Cairn shows ads.

### Which is updated more often, Data Tree Manager or Cairn?

Data Tree Manager ships an update every 3 weeks, and Cairn every 5 days. Most recently, Data Tree Manager was updated on September 24, 2026 and Cairn on October 1, 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.*