After installing the last update for Monster Legends on my iPhone 12, I am now unable to open the app. When I tap on the game icon, it immediately shuts down but is open with a black screen in the background when I swipe to see what apps are open.

Hi rlang1255,

Welcome to Apple Support Communities! We're here for you. Let's go over all options to help with this game app.

To start, have you had a chance to restart your iPhone since noticing this issue? If not, let's do so now. Here's a guide with the recommended steps for a standard restart:

Restart your iPhone - Apple Support

If the issue persists after restarting, we recommend ensuring that your iPhone is fully updated to the latest version of iOS. Here's a guide to help with backing up and updating:

Update your iPhone, iPad, or iPod touch - Apple Support

If it's still not resolved at that point, we can recommend deleting, then reinstalling the app. This step helps to isolate the issue to your iPhone, or the app itself. If it's still happening, reach out to the app developer by finding their contact information in the App Store, following these steps:

How to contact an app developer - Apple Support

Have a great day!

Hi rlang1255,

Great question. It's certainly possible that deleting the app may permanently delete any saved content in the app, as app data is also deleted.

Depending on the game or app, that data may also be syncing to an online service, so that it can be restored after reinstalling the app. To determine if that's the case with your game, you may attempt to install the game on another device first, if possible, to see if the saved data also restores.

Otherwise, you'll want to reach out to the game developer directly to inquire about this issue and options to preserve data before deleting the app. You'll also want to monitor the App Store for any new updates to the app, if it is in fact an issue with the latest app update.

Take care!