Instructions for PC/Mac/Linux:
Step 1: You need to have the app installed on your iDevice. If you're on iOS 9, you must install the app using iTunes in order for this process to work.
Step 2: The binary also needs to be Cracked using Clutch or Rasticrac. Get them both from cydia.iphonecake.com and there are tutorials on how to use them posted around the forum.
Step 3: Once you have your cracked binary, visit http://armconverter.com/binarytools/
Step 4: Now select your binary file for uploading or just drag and drop it on the upload button.
Step 5: Select the "Thin Binary" option and then press the "Go" button.
Step 6: Wait for the binary file to upload and the page to refresh showing you the download link for the thinned/patcher binary.
Step 7: Click the download thinned binary button and you know have patched/thinned your binary!
Instructions for iOS/iDevice:
The same procedure is done if you're on iOS and using Safari. To upload any files using Safari, install "Safari Uploader 8" from Cydia.