Put app on Iphone

i know how to sideload but i cant seem to do it on iphones plz help

Iphone needs to have a valid signature else it wont allow you to download it. Its a safety feature

Either you need a mac (windows might work), with iTunes (drag the app to iTunes, and sync the app to your iPhone. (If this doesn’t work, I don’t know. I haven’t used an iPhone since the 3GS, and I jailbroke mine, so I didn’t need iTunes. I only used iTunes on my old iPod short Gen 3.