Comparison

Birthday Schedule vs Cairn

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

Head to head
About

Birthday Schedule

Read full description

There are dates that are not just numbers on the calendar, but moments that really matter. A birthday is an opportunity to make someone feel important, to dedicate a thought, a message, a smile. Birthday Schedule was created for this very reason: to help you never forget the people who are part of your life. With Birthday Schedule, you can save all birthdays easily and instantly. The app automatically calculates their age and always shows you the next birthday, even in future years, so you know in advance who will be celebrating and when. You can organize the list however you like, filter by month or year, and have everything under control in seconds. Notifications are fully customizable: you can decide how many days in advance to receive the alert, at what time, and choose whether to enable or disable them for each individual person. Notifications are recurring every year, so you never have to re-enter anything. The app takes care of everything, you just have to enjoy the moment. Each birthday can be made even more personal by adding a photo, taken directly with your camera or chosen from your library. A face, a memory, an emotion: when you open the app, you'll know immediately who it is, without even reading the name. When the special day arrives, Birthday Schedule lets you take immediate action: you can send birthday messages, emails, or share your thoughts on social media, or search for a gift online or a nearby store for a last-minute surprise. Everything is designed to make the gesture simple and natural. Thanks to iCloud synchronization, your birthdays are always available on all your Apple devices. Birthday Schedule is available in Italian, English, French, Spanish, German, Traditional Chinese, Japanese, and Russian, so you can use it in your own language or recommend it to anyone, anywhere in the world. Simple to use, elegant in design, and reliable every day, Birthday Schedule is the perfect app for those who want to take care of their relationships without forgetting anyone. Download it now and turn every birthday into a truly special moment!

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

Birthday Schedule4 screens
Cairn4 screens

Verdict

The call

The clearest difference is update cadence: Cairn at every 6 days against Birthday Schedule's every 3 weeks. Cairn also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Birthday Schedule ships an update every 3 weeks, Cairn every 6 days. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Birthday Schedule versus Cairn: the parameters behind the verdict, then further details
ParameterBirthday ScheduleCairn
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.217.0 — better
Further details — not scored
Size4 MB9 MB
Age rating17+4+
DeveloperGianluca D AnastasioYoung Hun JEONG

In-app purchases

None

Birthday Schedule

No in-app purchases

None

Cairn

No in-app purchases

Questions

Is Birthday Schedule free?
Birthday Schedule is free to download, with no in-app purchases.
Is Cairn free?
Cairn is free to download, with no in-app purchases.
Do Birthday Schedule or Cairn have ads?
Neither Birthday Schedule nor Cairn shows ads.
Which is updated more often, Birthday Schedule or Cairn?
Birthday Schedule ships an update every 3 weeks, and Cairn every 6 days. Most recently, Birthday Schedule was updated on October 31, 2026 and Cairn on October 28, 2026.

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