Step 1 · 5 min
Install Carbyn with TestFlight
1Open your Carbyn invite#
Look for an email from TestFlight.


2Get TestFlight#
No TestFlight yet? The invite sends you to the App Store. Install it, then tap the invite again.
Already have it? Skip to step 3.

3Accept, then install#
Installed Carbyn before? You will see Update or Open instead.


4Open Carbyn#
Find it on your Home Screen and tap it.

Report a problem in 30 seconds#
1 · Take a screenshot: side button + volume up.



Quick fixes#
- Carbyn will not install
- Update iOS to 16 or later: Settings › General › Software Update.
- No invite email
- Check spam for "TestFlight", or ask your admin for the beta link.
- Carbyn stops opening
- The build expired after 90 days. Open TestFlight and tap Update. Turn on Automatic Updates so it does not happen again.
- Carbyn crashed
- On the alert, tap Share, add a note, then Submit.
- You want to leave the beta
- TestFlight › Carbyn › Stop Testing.