Google Play is not hacked, but you can make in-app purchases for free
Now I will tell you how to use this miracle. First, check that external sources are allowed:

Download the APK file at the following link: system.in-appstore.com/freedom/download.php
Install it and run (the first launch may take a lot of time).

Allow root: Tap on the application of interest, wait a bit:

If FreeCard appeared during the purchase, it means that you are on the right track.

We have also integrated the update function by air, so sometimes you will receive update messages. Tap, and the new version will download and install automatically. Here is a screen of successfully launched Freedom and update notifications:

In the future, if you want to get a free purchase, launch the application through Freedom.
And once again, we remind you that the program does not work with online applications, and will never work.
PS: Only for officially purchased / downloaded from Google Play applications
Oh yes, and WARNING: This is a beta version that almost does not work, but maybe you are lucky =)