The mobile app on iOS crashes - what can I do?

Like @Mark said. Try to un install, or use another application to unistall dropbox and its residual files. Some times other files are left in the system and makes conflicts with new files to be installed. 

I have this same issue on both my iPhone and my iPad Air, both fastest iOS.  Have done all the delete/reboot/replace but still crashes shortly after opening.

Hey shauntucker, I hope you’re doing well. 

Prior to reinstalling the Dropbox app on your mobile device, did you also clear its cache via the app settings?

If yes, can you also send the app versions that your app is running on both of your devices?

The app doesn't even stay open long enough to access anything.  It's open for about 1 second, then crashes and closes.

Hmm, I see. 

What are the app versions that your Dropbox app is running on both of your devices? 

I’ll check what else we can try, since the issue persists.

I believe it's the latest version of the app, as I have deleted and reinstalled.  I'm running iOS 15.5.  I found that on my iPhone, if I tap on my one video file immediately as the app opens, like within the first second, it will open that video, but if I go back to home, it crashes again. I'm not able to do this on my iPad however.

This crashing seems to happen with something like files loading.  The message corresponds to the crashing and happens very fast.  It says "See files from your computer here, Tap to set up Dropbox on your computer.

Hi shauntucker, is this occurring with any files you're trying to open? Are you connected to WiFi or cellular data when doing so?