If you are looking to sideload a modded IPA onto a non-jailbroken iPhone or iPad, you generally need tools like (depending on your iOS version).
To get started, you must install software on both your computer and your mobile device: Splashtop Wired XDisplay - Extend Mirror IPA ...
IPA distribution and installation considerations If you are looking to sideload a modded
Supports high-resolution output (including Retina ) at up to 60 frames per second (fps) . Splashtop Wired XDisplay - Extend Mirror IPA ...