This method requires a jailbroken iPhone or iPad with Cydia installed. Check out How to Jailbreak an iPhone to learn how to jailbreak, or see the Installing Without Jailbreaking method if you prefer not to jailbreak. The advantage of using AppCake on a jailbroken device is that it won’t randomly stop working because of Apple revoking its certificates.

You may have to tap Return to Cydia to get back to the source list.

Installing without jailbreaking generally lets you do all of the same things as if you were jailbroken. But if you choose not to jailbreak, AppCake may stop working for periods of time due to Apple’s tendency to revoke its enterprise certificates (common with any alternative app store). If Apple has revoked AppCake’s certificate, it can take weeks or longer to get a new certificate. If you don’t want to jailbreak and can’t use AppCake because the certificate is revoked, AppCake’s developers recommend their paid app called iPASTORE. [2] X Research source

Don’t proceed until the app is finished downloading. You can check on the download by swiping left to the App Library, tapping the search bar at the top, and searching for AppCake. If you see AppCake’s blue-and-white star icon next to the app, the download is complete. If it’s showing a timer over the icon and it’s grayed-out, wait for the icon to turn into a blue-and-white star and then move forward. If AppCake’s icon is white with lines instead of blue-and-white, tap the icon—if you see an error that says “Unable to Install AppCake – Please try again later,” it might be because AppCake has not yet been updated to work with your version of iOS. It also may be because Apple revoked their certificate. Either way, delete the non-working app and wait a few days/a few weeks and try again. [3] X Research source