# MoreBrainSpace vs Cairn

The clearest difference is monetization model: Cairn at free against MoreBrainSpace's ad-supported. MoreBrainSpace's advantage is ratings volume (5 vs 1) and device support (4 vs 2). On price, rating, update cadence and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for MoreBrainSpace against 5.0 for Cairn. That said, the two scores are not equally well evidenced: MoreBrainSpace has 5 ratings behind it against 1, so its average is the more settled of the two.

MoreBrainSpace ships an update every 10 days, Cairn every 6 days. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | MoreBrainSpace | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/morebrainspace/id6759112018/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cairn-markdown-tasks/id6786663000/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | Ad-supported | **Free** |
| Size | 25 MB | 9 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [TIMOTHY SEAN OPHELAN](https://appshunter.io/developer/1876925724) | [Young Hun JEONG](https://appshunter.io/developer/6786662344) |

## What reviewers say

### MoreBrainSpace

[App page](https://appshunter.io/ios/app/morebrainspace/id6759112018)

This app offers a non-linear memory system designed for individuals who think in multiple directions simultaneously. It allows users to capture and connect ideas, tasks, notes, and people without a rigid filing system, facilitating better thinking, learning, and creation.

**Highlights:** Non-linear memory system, Connects tasks, notes, people, projects, Capture ideas instantly, No filing system required, Facilitates learning and creation

**Features:** macOS Compatibility, Apple Watch app, 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 MoreBrainSpace free?

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

### Is Cairn free?

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

### Which has better reviews, MoreBrainSpace or Cairn?

MoreBrainSpace and Cairn are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do MoreBrainSpace or Cairn have ads?

Neither MoreBrainSpace nor Cairn shows ads.

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

MoreBrainSpace ships an update every 10 days, and Cairn every 6 days. Most recently, MoreBrainSpace was updated on October 4, 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.*