Hi there, joephinefrombellaire!
Thanks for reaching out to the Apple Support Communities! It sounds like you are having an issue with an app not opening properly and I am happy to help out! I suggest taking a look at this article with steps to follow If an app unexpectedly quits, stops responding, or won’t open. These are the best steps to take along with the next steps if you continue to have issues.
Cheers!
I have an iPhone X updated and downloaded an app. When open the app, it shut off by itself within two seconds of opening.
1 reply
App shut down after opening why?