Simply put, Apple software signing is a way to install ipa files without jailbreaking the iPhone. Ipa files can be installed directly, even without putting them on the App Store. Apple's software signature is equivalent to giving higher permissions to ipa files, which can be directly installed or passed the real machine test.

Classification of Apple Software Signatures

At present, Apple software signatures can be divided into three categories, namely enterprise signatures, super signatures and tf signatures. The principle, price and stability of the three Apple software signatures are different.

The only official download channel for Apple apps is the AppStore. Apps that are not on the appStore can't be installed on the iOS system, but many apps can't be on the AppStore, or some of Apple's software needs internal testing, but the review of the AppStore on the shelves is too strict and the review time is too long. It's too much trouble to put it on the shelf. At this time, you need the signature of an enterprise.

After Apple's software is signed by iOS, it can be downloaded and installed directly on the iOS system, bypassing Apple's audit. Software that is unsigned and not on the AppStore cannot be downloaded and installed. This is Apple's review mechanism.

I have signed the micro-diversion, and I feel ok. Sometimes signing a contract depends on luck. Sometimes market stability can last for two or three months, three or four times a month. Try to choose a platform. The platform is more reliable, at least it won't be cheated.