Support
How can we help?
If something isn’t working the way you expect, or you have an idea for Cardinal, write to us.
Tell us your iPhone or iPad model, your iOS version, and your Cardinal version (you’ll find it in the app’s Settings). We answer in English and Spanish.
Frequently asked questions
Do I need to create an account?
No. Cardinal has no sign-up or password: it uses the Apple Account you’re already signed in with on your iPhone.
How do I see my trips on both my iPhone and iPad?
Sign in with the same Apple Account on both and make sure iCloud is turned on for Cardinal in Settings → [your name] → iCloud. Your trips sync on their own; the first time can take a few minutes.
Why can’t I import a booking?
Importing reads your confirmations with Apple Intelligence, on the device. You need an iPhone or iPad that supports Apple Intelligence, with it turned on in Settings → Apple Intelligence & Siri. If your device doesn’t have it, you can add flights, hotels, and bookings by hand.
How do I add a trip to my calendar?
Open the trip and tap Add to Calendar. Cardinal creates a calendar named “Cardinal” and keeps the events up to date when you change something in the trip.
Where is my data, and who can see it?
On your device and in your private iCloud. No one else can see it, not even us. More details in the Privacy Policy.
How do I delete my data?
Delete your trips in the app, or remove everything from Cardinal in Settings → [your name] → iCloud → Manage Storage → Cardinal.
Can I use Cardinal in English or Spanish?
Yes. Cardinal follows your iPhone’s language: Spanish if your iPhone is in Spanish, English for every other language.
What do I need to use Cardinal?
An iPhone or iPad with iOS 26 or iPadOS 26 or later.