iOS app shows splash screen; exits

Observed behavior

Downloaded TestFlight to my iPhone16. Then downloaded Aspect. Opened Aspect. It showed a splash screen and then immediately exits. Relaunching gives the same behaviour.

Deleted the app and downloaded again (clicked link in “Getting Started on iOS”). Same behaviour.

Expected behavior

Not sure what I expected – I’m just trying it out. But definitely not just exiting!

Steps required to reproduce

See description above.

Operating system/Hardware used

iPhone16; iOS 18.5