Here is manual to enable in-appstore.com semi-offline solution with jailbreak.

This is also only applicable solution for iOS >=6.

Preamble

If you have Cydia – just add new repository with address http://system.in-appstore.com/repo/ and install package contained in it.

Starting from version 1.3 you have two ways to make in-app purchase with LocalIAPStore:

  • Standard receipt
  • Custom receipt

 

Standard receipt:

Step one:

Enable hack in your Settings.app, disable custom receipts ( no need log out from your Apple ID).

Step two:

Open app in which you want to make in-app purchase. Try to buy something – popup will be displayed. Tap “Cancel” – you are done! Receive you in-app for free!

Custom receipt:

Step one:

Enable hack in your Settings.app, enable custom receipts. Then you need log out from your Apple ID.

Step two:

Open app in which you want to make in-app purchase. Try to buy something – popup will be displayed. Tap “Buy”, then, on Apple ID popup, tap “Cancel” – you are done! Receive you in-app for free!

If one of the ways fails, try another, it may work;)

Help the project by donating via bitcoin to 1CKXhzmv5myt1m9QrpbyXHq92kyjL6vAyK