iPatch is extremely easy to use.
To create a patch:

• Choose the old version of the application you want to modify;
• Choose the new version of the application ;
• Select all the files ( Executable, .nib file, .img file ...) you have modified in the new version of your application.
• Write a little description of your patch. Note that iPatch accepts Copy/Paste ;
• Select where you want to save your patch and choose a name for it ;
• That's it! iPatch will create a patch for your application.

Additionnaly, iPatch use SHA1 encryption, in order to prevent your users to apply the patch on an invalid version of your application.

To apply the patch, a user just needs to select the application to upgrade. That's all!