There are multiple bug reports for the recent iOS versions, so I’m going to close this one. Right now the recommended course of action is to delete the app and reinstall it. If that doesn’t work, please add to one of those reports:
https://forum.inaturalist.org/t/app-freezing-ids-taking-photos-etc/16871
https://forum.inaturalist.org/t/ios-app-crashes/16178/
Also, please provide the information we ask for in the Bug Report template. If you don’t provide it then, we’ll probably just ask you for it later and it slows down the bug investigation process. Specific details like version number, device, OS version, etc, are very important when investigating bugs.