Sometimes stuck at Data.append about flexdecrypt

[Halo-Michael]

Same, iOS13.4.1 iPhone7, wanna decrypt Skyhill.

[JohnCoates]

Do you have any examples of free apps this occurs with? I haven't been able to reproduce this issue.

[Halo-Michael]

To reproduce this problem, it seems that two conditions need to be met: the app needs pay; the account to which the app belongs has never been logged in on the device.
3utool used to have a function to download pirated paid programs, but it has already canceled this function. Unfortunately, I have not downloaded much apps that meet these two conditions, so it is difficult to be 100% sure.

[Halo-Michael]

Correction: Just need the apple id to which the app belongs has never been logged in on your device. I tried to download a free application using 3utools, and it also could not be decrypted.

[JohnCoates]

This is not a tool for piracy. It's for research.

You need to be licensed to decrypt the app, that means having signed into the account that the app was originally downloaded with. FairPlay encryption is cryptographically secure, so if you don't have the keys on-device to decrypt the app then it's impossible to do that.