I’m not sure what you mean by “youtube decrypted ipa.” I’ll assume you want a clear, well-structured explanation and guide about what a decrypted YouTube IPA is, how it’s used, risks, and alternatives. I’ll provide that. If you meant something else (e.g., a walkthrough of installing an IPA, technical reverse-engineering, or legal analysis), say so and I’ll adjust.

Because these IPAs are unsigned and un-sandboxed (when combined with TrollStore or jailbreaks), they have access to:

On jailbroken devices, tools like TrollDecrypt or DumpDecrypter can dump the app from memory after it is launched, creating a decrypted .ipa file.