Cairn Support

Get help with Cairn for macOS, Cairn Remote on iPhone and iPad, pairing, or remote connections.

Updated September 6, 2026

Feedback and bug reports

Report reproducible bugs and improvement ideas in the public GitHub tracker. Search existing feedback first so you can add useful context to an open report instead of creating a duplicate.

GitHub issues are public. Do not include terminal contents, license keys, pairing codes, QR-code screenshots, SSH keys, AWS credentials, or other private information.

Report a bug Request a feature Browse feedback

Private support

Email tom@p10q.com. Include your Cairn version, macOS or iOS version, and the exact error message. Do not send SSH private keys, AWS secret access keys, full license keys, pairing codes, or QR-code screenshots.

p10q aims to acknowledge purchase, activation, and security-sensitive requests within two business days.

Email support Read the privacy policy

Set up Cairn Remote

Install and open Cairn for macOS.
Open Remote > Jump Host and complete the guided AWS setup.
Open Remote > Pair iPhone.
In Cairn Remote, tap the plus button and scan the QR code. You can also copy and paste the pairing code.

Get Cairn Remote Open the complete setup guide

Connection troubleshooting

Keep Cairn running on the paired Mac and make sure the Mac is awake.
In Cairn for macOS, open Remote > Jump Host and confirm the tunnel is connected.
Confirm the AWS account and CLI profile used during setup are still active.
On iOS, open the host again after changing between Wi-Fi and cellular.
Enable Settings > Show connection log to capture a local diagnostic log.

Revoke an iPhone

On the Mac, open Remote > Paired iPhones and remove the device. This removes its SSH authorization immediately. For complete credential cleanup, also delete the matching cairn-iphone-* IAM user from your AWS account.

Purchases

Cairn Remote costs USD 19.99 in the United States and is sold as a paid download through the App Store. That purchase is the complete iOS and iPadOS license. The app has no in-app purchases, subscriptions, trial, or separate activation.

A separately licensed copy of Cairn for macOS is required to provide the host terminal. The iOS and macOS purchases are separate.

Apple handles billing and refund requests for iOS purchases. The p10q Refund Policy applies only to Cairn for macOS licenses purchased directly from p10q.