Cairn it
before you
buy it

What does this cost me in time? One sentence, before you tap buy.

Cairn is a savings planner. Tell it what you're saving for and what your bank says, and every purchase comes back as days, weeks or months on the things you actually want. Then the decision is yours.

Coming soon to the App Store iPhone · iOS 16.4 or later Free week, then a subscription
  • No account, ever
  • Your plan stays on your phone
  • Never connects to your bank
Cairn's icon: a small stack of stones.

It says things like

  • “The deposit lands 4 days later.”
  • “There's room for it.”
  • “A night to think it over costs nothing.”

What it does

No budget categories, no bank login, no spending reports. One number off your bank app, now and then.

  • Ask before you buyType what it is and what it costs, or share it straight from Safari or Instagram. Cairn answers in time, on the pots it would move.
  • Pots, not budgetsA trip, a car, a first-home deposit. Each one has a picture, a price and the month it lands, and they share what you can save.
  • Check in with one numberType what your bank says, or share a screenshot of it. Every date moves with what really happened.
  • An emergency fund firstSized in months you could live on, and filled before the pots if you want it to be.
  • Sleep on itNot sure? Park it. Cairn asks again at your next check-in, priced against the plan as it is then.
  • Your call, every timeBuying is a decision, not a lapse. Cairn says the price and steps back. It never tells you what you should do.

Price

Cairn is a subscription, monthly or yearly, with a free week first for new subscribers. Setting up your plan, the example and your first answer are free, so you see what Cairn says about your own money before you pay anything.

7 days free, then monthly or yearly
  • Prices are shown in the App Store, in your own currency
  • Cancel any time in the App Store; cancel in the first week and you're never charged
  • Your plan stays on your phone whether or not you subscribe

Cairn shows you the day the free week becomes a charge before you start it, and again in Settings. If your subscription ends, your plan waits on your phone exactly as it was.

Privacy, briefly

Your money stays
on your phone

  • Your plan is stored on your device only
  • Screenshots are read on your phone, then deleted
  • No bank login, no analytics, no ads

The only information that leaves your phone is what's needed to manage your subscription. Full detail in the Privacy Policy.

Ask before you buy

Cairn is coming soon to the App Store. A guide from your own numbers, not financial advice.

Ask about Cairn

iPhone · iOS 16.4 or later