Privacy

Privacy.

Short version: Cartwhile has no account and no server. What you hold stays on your phone. The app sends anonymous usage counts, and one switch turns them off. Effective November 10, 2026.

This website

When you join the beta, your email address and which form you used (top of the page or bottom) go to Buttondown, our email provider. We use it to send beta invites and updates. Signup is double opt-in, and every email has an unsubscribe link.

We count page views with Vercel Web Analytics, which does not use cookies. The “which app gets your money” question after you confirm is just an anonymous page view of the answer you tap.

The app

  • No account and no Cartwhile server. Your holds, rules, totals and history are stored on your iPhone, in storage shared between the app and its extensions.
  • The apps and sites you choose with Apple’s Screen Time picker are opaque Apple tokens. Cartwhile can’t see app names or what you browse.
  • When you share a link, your phone loads that page itself to read the item name, price and image. Nothing passes through us.
  • Screenshots you share are read on your phone, with Apple’s on-device text recognition.
  • Notifications are scheduled on your phone.
  • Purchases, if you buy Pro, are handled by Apple. We never see your payment details.

Anonymous usage data

To learn which parts of Cartwhile help, the app sends anonymous usage events to TelemetryDeck, a privacy-focused analytics service. For example: that onboarding was finished, that a hold was started or resolved (skipped, bought or expired), how many days it was held, a rough price range such as “$25–100”, that the paywall was shown, and a weekly total of dollars kept.

These events never include item names, links, store names, photos, the apps you picked, your email or your Apple ID. Each install gets a random ID that isn’t tied to you; TelemetryDeck hashes it, and reinstalling creates a new one. We don’t sell this data or use it for advertising, and it isn’t used to track you across other companies’ apps or websites.

Turn it off any time in Settings > “Share anonymous usage data”. When it’s off, nothing is sent.

Report a problem

The app keeps a short diagnostics log on your phone: app events, errors and settings, for the last 7 days. It never leaves your phone on its own. If you tap Settings > Report a problem, it’s attached to an email you can read before you send it.

That report includes your install’s Diagnostics ID, so once you send it we can match your email to that install’s anonymous usage events. That’s how we find out what went wrong. We use it only to answer your report.

TestFlight

The beta runs on Apple’s TestFlight. Apple shares crash reports and any feedback you send through TestFlight with us, along with the email address you were invited with.

Your choices

Want your email removed from the beta list, a sent report deleted, or a question answered? Write to hello@cartwhile.com. Deleting the app deletes everything it stored on your phone.

Contact

Cartwhile is operated by Common Kernel LLC. Write to hello@cartwhile.com. If this policy changes, we’ll update this page and its effective date.