# BrickNote vs Cairn

The clearest difference is in-app purchases: BrickNote at none against Cairn's 3. BrickNote also leads on ads (none vs shown) and update cadence (daily vs every 5 days). Cairn's advantage is iOS requirement (15.0 vs 17.4). On price and device support there is nothing between them.

Both are free to download. Cairn sells 3 in-app purchases, starting at $1.99 per month. BrickNote asks for nothing beyond the download.

BrickNote ships an update daily, Cairn every 5 days. The most recent releases landed on October 16, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | BrickNote | Cairn |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 5 days |
| Monetization | Paid | — |
| Size | 8 MB | 41 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Youngbae Yoo](https://appshunter.io/developer/1739335503) | [Heajung Yoo](https://appshunter.io/developer/1895444232) |

## What reviewers say

### BrickNote

[App page](https://appshunter.io/ios/app/bricknote-quick-notes/id6480510195)

This app offers a simple and intuitive way to create and manage notes using a chat-like interface. Easily add images, set reminders, create checklists, and organize with tags. It supports iCloud sync, widgets, and Face ID protection for your important information.

**Highlights:** Chat-style note input, Image attachment, Schedule reminders, Checklist creation, Tagging for organization, iCloud synchronization, Home screen widgets, Face ID memo lock

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

**In-app purchases:** none


### Cairn

[App page](https://appshunter.io/ios/app/cairn/id6767776784)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cairn Pro Monthly | $1.99 | per month |
| Cairn Pro yearly | $12.99 | per year |
| Cairn Pro - Ad-free forever | $0.99 | one-time |


## Frequently asked questions

### Is BrickNote free?

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

### Is Cairn free?

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

### Do BrickNote or Cairn have ads?

Cairn shows ads; BrickNote does not.

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

BrickNote ships an update daily, and Cairn every 5 days. Most recently, BrickNote was updated on October 16, 2026 and Cairn on October 12, 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.*