The iPhone app is in beta.CardBull is on the App Store.

Download it free, then log in with the same account you use on this website.

You can download it today. Beta apps come through TestFlight, Apple’s free app for testing apps before they reach the App Store, so you’ll need TestFlight on your iPhone first.

1. Install TestFlight

   Open this page on your iPhone and get TestFlight from the App Store. It’s free and made by Apple.

   Get TestFlight

2. Join the beta

   Tap the button on your iPhone. TestFlight opens the CardBull beta.

   Join the beta

   Beta full or the link not working? Email us and we’ll send you an invite.

3. Install CardBull

   In TestFlight, tap Accept, then Install. CardBull lands on your home screen like any other app.

4. Log in

   Use the same account as this website and everything syncs. No account yet? Create your free account and use it in your browser right away.

Needs an iPhone with iOS 18 or later. Updates arrive through TestFlight until the app is on the App Store.