Comparison

Notedown vs Cairn

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Notedown

Features
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Notedown is a featherweight markdown notes app for people who just want to write. No accounts, no sync, no clutter — every note is saved as a plain .md text file on your device and never leaves it. WRITE IN MARKDOWN Use familiar markdown to structure your thoughts: headings, bold and italic, bulleted lists, checkboxes, quotes, code, and links. A one-tap formatting toolbar inserts the syntax for you, so you never have to remember it. EDIT OR PREVIEW Flip between a distraction-free editor and a clean rendered preview with a single tap. See exactly how your note looks, then jump back to writing. FULLY OFFLINE, FULLY YOURS Your notes are stored as standard markdown files in the app's own folder on your device. There is no cloud, no login, and nothing to set up. What you write stays with you. FIND ANYTHING FAST Search across all of your notes instantly. The list keeps your most recently edited notes at the top. SHARE WHEN YOU WANT Export any note as markdown text through the standard share sheet. SIMPLE BY DESIGN - Light and dark themes - English and Japanese - Portrait, one-handed friendly layout - Free to use (contains ads) Notedown is the calm, lightweight alternative to heavy note apps — just markdown, and nothing in your way.

About

Cairn

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
Read full description

Cairn is a fast, native task and note companion that lives on top of the Markdown files you already own. Point it at your Obsidian vault — or any folder of Markdown notes — and your tasks and notes appear in clean, focused views. Everything you do in Cairn is written straight back to your files as plain text, in the Obsidian Tasks format. YOUR NOTES STAY YOURS • No account, no sign-up, no Cairn cloud database — your tasks live in your own files • Cairn does not send your notes or tasks to the developer • Careful, patch-based edits change only the content you touched, preserving the rest of your note • Works alongside Obsidian, iCloud Drive, Git, or any sync you already use CAPTURE, BROWSE, AND PLAN • Browse and edit Markdown notes directly in your vault • Quick capture into your daily note, with date, tag, and priority tokens parsed as you type • Choose where longer captures are saved • Today, Upcoming, Inbox, and Pool views, plus a global filter for folders, tags, dates, priority, and status • Full support for sub-tasks and task hierarchies • Recurring tasks in Obsidian Tasks format, with safe completion handling • Convert upcoming calendar events into tasks, or mirror your dated tasks into a calendar you choose (optional) STAY ON TRACK • Local reminders for due tasks — including sunrise-relative reminders computed entirely on your device • A Live Activity keeps today's progress on your Lock Screen and in the Dynamic Island • Home Screen widgets and a Control Center quick-capture control • Search across every task in your vault MADE FOR OBSIDIAN — NOT ONLY OBSIDIAN Cairn reads and writes the Obsidian Tasks plugin format (due, scheduled, start, and done dates, priorities, recurrence, tags), so your vault stays fully compatible with your desktop setup. Don't use Obsidian? Create a plain task folder in the Files app and Cairn works as a stand-alone Markdown to-do app. Cairn asks for access only to the folder you pick. Calendar access and location (used to compute local sunrise times) are optional and processed on your device. If you choose iCloud Drive or another Files or calendar provider, that provider's own sync and privacy terms apply.

Screenshots

Notedown4 screens
Cairn4 screens

Verdict

The call

Notedown and Cairn are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Notedown ships an update every 4 days, Cairn every 6 days. The most recent releases landed on October 9, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Notedown versus Cairn: the parameters behind the verdict, then further details
ParameterNotedownCairn
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 days — betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhoneiPhone, iPad — better
Requires iOS17.017.0
Further details — not scored
Size24 MB9 MB
Age rating4+4+
DeveloperYuki OkawaYoung Hun JEONG

In-app purchases

None

Notedown

No in-app purchases

None

Cairn

No in-app purchases

Questions

Is Notedown free?
Notedown is free to download, with no in-app purchases.
Is Cairn free?
Cairn is free to download, with no in-app purchases.
Do Notedown or Cairn have ads?
Neither Notedown nor Cairn shows ads.
Which is updated more often, Notedown or Cairn?
Notedown ships an update every 4 days, and Cairn every 6 days. Most recently, Notedown was updated on October 9, 2026 and Cairn on October 28, 2026.

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