iPhone beta · 25 founding spots

Hold the cart for a while.

Cartwhile steps in when you open a shopping app, holds what you were about to buy for a day (or longer, if you like), and adds up the money you kept. Most things you wanted at 11pm, you won’t want tomorrow.

Free while in beta. Needs an iPhone on iOS 17 or later. Your TestFlight invite comes by email.

You’re in line for a spot. Confirm your email, and your TestFlight invite follows within a day.

NO-BUY RECEIPT · SEPTEMBER

Linen overshirt$68.00KEPT

Air fryer, bigger one$129.99KEPT

3 × phone cases$41.97KEPT

Desk lamp$54.00ON HOLD

Running shoes$120.00KEPT

YOU KEPT$359.96

4 kept · 1 still waiting

A speed bump, not a lecture.

No bank linking and no budgets to set up. Cartwhile adds one pause at the only moment that counts: right before checkout.

1
Pick your weak spots
Amazon, Temu, Shein, Target, whatever gets you. You choose the apps and sites with Apple’s Screen Time picker.
2
Pause, then hold it
Open one and Cartwhile steps in first. Hold what you were about to buy right there, or from the Share button in any app, site or screenshot.
3
Watch “kept” add up
When the wait’s over, pick: buy it, give it another day, or skip it. Skipped money counts as kept. Bought it anyway? That’s a decision, not a failure.

Give it a beat before Amazon.

You’ve walked away 2 times today.

Open Cartwhile Not now

Not now counts as a walk-away. Open Cartwhile to hold it, or take a short, timed look.

Kind by default. Firm if you ask.

By default you’re a tap or two from the store. Turn on hard mode when you’d rather not be.

Hold from anywhere. Tap Share in Safari, Amazon, Instagram or on a screenshot, and pick Cartwhile.
Private by design. Uses Apple’s Screen Time framework, so Cartwhile can’t see what you browse. No account, no bank linking, and your holds stay on your phone.
Rules for your weak spots. Always on, weak hours late at night, a lock for sale events, or a no-buy challenge.
Receipts worth keeping. Every item you skip lands on a month-by-month no-buy receipt, with a running total of what you kept.

Questions

Short answers, since it’s early.

Can I try it now?

Yes. The beta runs on TestFlight, Apple’s free app for testing, on iOS 17 or later. The first 25 founding testers get in now: leave your email and the invite follows.

Does it move money into savings?

Not yet. “Kept” is an honest counter of what you didn’t spend. It doesn’t touch your bank.

What will it cost?

Free during the beta, Pro included. After launch the free plan keeps one always-on rule, and Pro adds more rules, hard mode and choosing your own hold length. We’ll share pricing before launch.

What if I buy it anyway?

Then you bought it. No red numbers, no guilt trips. Cartwhile’s only job is to make sure you decided on purpose.

Android?

iPhone first, because Apple’s Screen Time tools are what make the pause possible. Leave your email and tell us if you want Android.

Be one of the first 25.

Founding testers get Pro free for the whole beta and help decide what Cartwhile becomes.