Here's how to get Delta Nintendo Emulator IPA on iOS 13 and iPadOS 13 without jailbreak on an iPhone or iPad.
Here's how to download and install Delta emulator IPA on iOS 10 running iPhone. No jailbreak is required for this to work.
Delta emulator for iOS announced. Beta version will be released for download next month. This emulator will be successor to the popular GBA4iOS emulator.