Comparison

TagNote vs Cairn

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

Head to head
About

TagNote

This app offers a flexible, tag-based approach to note-taking, moving beyond traditional folder structures. Organize meeting notes, ideas, and web clippings with multiple tags per note, and connect your thoughts to build a personal knowledge network. It features a rich text editor and reminders for important dates.

Highlights
  • Unlimited tags per note
  • Rich text editor with formatting
  • Birthday and anniversary reminders
  • Tag-based knowledge network
  • Minimalist and distraction-free design
  • iCloud data synchronization
Features
Read full description

TagNote is available for Mac, iPhone, and iPad, and syncs data via iCloud. Meeting notes, lecture summaries, web clippings, and sudden ideasβ€” Are you losing track of what truly matters in the chaos of scattered information? [TagNote] is a tag-based note-taking app that breaks free from the limitations of traditional folder structures. Assign multiple tags to a single note and organize your thoughts flexibly. Connect ideas, discover patterns, and gain new insights through your very own knowledge network. Key Features of TagNote #1. Unlimited Tags, Effortless Organization Say goodbye to rigid folders. Add as many tags as you needβ€”like Work, Ideas, or Booksβ€”to each note. Easily manage and retrieve notes across multiple themes with just a few keywords. #2. Powerful Yet Simple Editor Use the toolbar at the top of each note to apply rich text formatting, insert code blocks, add images, and create checklists. Capture your ideas vividly with an editor that’s both flexible and intuitive. #3. Birthday & Anniversary Reminders Keep track of important dates like birthdays and anniversaries. Attach meaningful notes to each occasion to preserve memories and emotions that matter. #4. A New Way to Connect Knowledge Tags create a web of related notes, helping you uncover hidden links between ideas. Visualize your thoughts like a map and explore unexpected insights as you build your personal knowledge network. #5. Minimal, Beautiful Design Focus on your content with a clean, distraction-free interface. We designed TagNote to make the process of writing and organizing notes both delightful and efficient. Download [TagNote] now and discover the smartest way to navigate the sea of information. Let your thoughts flow, connect, and grow with the power of tags. This app follows Apple’s Standard End User License Agreement (EULA). https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Cairn

Features
Read full description

Cairn (차곑차곑) is a calm, anonymous-first todo app β€” every core feature works without an account. Like the small stones stacked into a cairn on a quiet trail, line up today's tasks one by one with clarity. β–  Core features - Anonymous by default: no sign-up, no transmission. All data stays on your device. - Inline markers: type @, #, !, * to set date, time, importance, and repeat in one line. e.g. "@tomorrow #3pm meeting", "*every-monday run". - Two-way swipe: left for reschedule / favorite / repeat. Right for duplicate / move group / delete. - Groups and color labels: organize by work, personal, fitness β€” at a glance. - Notifications with quiet hours: push reminders that auto-defer to the next morning during quiet hours. - Stats dashboard: weekly / monthly / yearly completion, 14-day sparkline, average completion time. - Backup & restore: JSON / CSV / Markdown export and import. Move devices safely. - Dark mode and three themes (Tica, Tally, Nudge). - English / Korean auto-detected. β–  Tracks - Anonymous (default): full core, on-device only. - Pro: ad-free β€” one-time purchase, yours forever. β–  What we don't collect No location, contacts, photos, microphone, camera, or health data. In anonymous mode, not a single byte leaves your device. β–  About Sobok β€” building small tools that add quiet order to daily life. Contact: admin@sobok.kr Privacy / Terms: https://sobok.kr/carin/legal/terms

Screenshots

TagNote4 screens
Cairn4 screens

Verdict

The call

The clearest difference is ads: TagNote at none against Cairn's shown. Cairn's advantage is iOS requirement (15.0 vs 18.2). On price, update cadence, in-app purchases and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. TagNote sells 3 in-app purchases, starting at $1.99 per month and Cairn sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 5, 2026 and October 25, 2026 respectively.

Scorecard2 real differences Β· 6 level
TagNote versus Cairn: the parameters behind the verdict, then further details
ParameterTagNoteCairn
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 5 daysEvery 5 days
AdsNo β€” betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesβ€”
DevicesiPhone, iPad, MaciPhone, iPod, Apple Watch
Requires iOS18.215.0 β€” better
Further details β€” not scored
Size9 MB41 MB
Age rating4+4+
DeveloperJonggyou KimHeajung Yoo

In-app purchases

3 purchases

TagNote

Subscriptions3
  • Monthly subscription7 Days trial$1.991 Month
  • 3-month subscription7 Days trial$3.993 Months
  • Annual subscription7 Days trial$9.991 Year
3 purchases

Cairn

Subscriptions2
  • Cairn Pro Monthly$1.991 Month
  • Cairn Pro yearly$12.991 Year
One-time1
  • Cairn Pro - Ad-free forever$0.99

Questions

Is TagNote free?
TagNote is free to download, with in-app purchases available.
Is Cairn free?
Cairn is free to download, with in-app purchases available.
Do TagNote or Cairn have ads?
Cairn shows ads; TagNote does not.
Which is updated more often, TagNote or Cairn?
TagNote ships an update every 5 days, and Cairn every 5 days. Most recently, TagNote was updated on November 5, 2026 and Cairn on October 25, 2026.

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