Hi JD 
I’m Lee, an iOS engineer here at Monzo. I’m taking a look into this issue at the moment and having some extra info about it would be super useful. For these sorts of crashes (right at app launch) it’s really difficult to see what’s going on, especially if we aren’t experiencing the same crash ourselves.
If you’d be willing and able to share a little extra info with me that would be really useful. Specifically the crash log that your phone should hopefully be storing.
To get to those crash log, you can:
- navigate to Settings > Privacy, scroll down, and tap Analytics & Improvements,
- make sure that “Share iPhone & Watch Analytics” is enabled,
- tap Analytics Data,
- pull down to reveal the search bar & search for “Monzo”,
- tap on the item that’s time-stamped to match when the last crash happened,
- tap on the Share button top-right, and then
- email that to us on feedback@monzo.com
Let me know once you’ve sent that through and I’ll take a look to make sure that I’ve got it.
cc. @N26throwaway if you’ve managed to find a reliable way of repeating this, sharing the steps that you take would also be super helpful. 