Comparison

Kever vs Cairn

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

Head to head
About

Kever

Manage Redmine projects and track issues efficiently from your mobile device. This app offers a streamlined interface for creating, assigning, commenting on, and editing tickets, with quick access to multiple servers and project dashboards.

Highlights
  • Manage multiple Redmine servers
  • Create, assign, and edit issues
  • Filter and search issues
  • Project dashboard view
  • Favorites for critical projects
  • Pie chart project overview
Features
Read full description

Seamlessly manage Redmine projects and track issues on the go. Kever helps to remotely track key aspects of a project in Redmine. The app integrates functionalities from Redmine to expedite bug fixes and track issues on the go. A simple and easy-to-use interface makes creating, assigning, commenting, and editing tickets a breeze. Features: - Quick access to multiple Redmine servers - Covers key functionality around the bug and issue tracking - View, create, filter, search, update/edit, assign, and prioritize issues - Sort critical projects under “Favorites” - Dashboard view highlights issues and status for each project - Compatible with Redmine 3.4 - Multiple projects support - Pie chart overview What is Redmine? Redmine is an open source flexible project management web application powered by Ruby on Rails framework. The cross-platform, cross-database application is released under the terms of the GNU General Public License v2 (GPL). You can get more info about Redmine at http://www.redmine.org/

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

Kever4 screens
Cairn4 screens

Verdict

The call

Kever and Cairn both sit at 5.0 stars, but that hides the real split: 100% of Cairn's written reviews are positive against 60% of Kever's. Cairn also leads on update cadence (every 6 days vs every 11 months). Kever's advantage is ratings volume (4 vs 1) and iOS requirement (12.0 vs 17.0). On price, rating, ads and in-app purchases there is nothing between them.

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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Kever against 5.0 for Cairn. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews are what separate them: 60% of Kever's written reviews are positive against 100% of Cairn's.

UpkeepUpdate frequency

Kever ships an update every 11 months, Cairn every 6 days. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.

Scorecard4 real differences · 6 level
Kever versus Cairn: the parameters behind the verdict, then further details
ParameterKeverCairn
PriceFreeFree
Rating5.0 (4 ratings)5.0 (1 ratings)
Positive reviews60.0% of reviews100.0% of reviews — better
Number of ratings4 — better1
Update frequencyEvery 11 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size35 MB9 MB
Age rating4+4+
DeveloperQBurst IncYoung Hun JEONG

Customer experience

Kever

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive60.0%
Neutral10.0%
Negative30.0%

Cairn

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Kever

No in-app purchases

None

Cairn

No in-app purchases

Questions

Is Kever free?
Kever 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, Kever or Cairn?
Kever and Cairn are both rated 5.0 out of 5 on the App Store, from 4 and 1 ratings respectively.
Do Kever or Cairn have ads?
Neither Kever nor Cairn shows ads.
Which is updated more often, Kever or Cairn?
Kever ships an update every 11 months, and Cairn every 6 days. Most recently, Kever was updated on October 2, 2026 and Cairn on October 17, 2026.

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