1. Open a new finder window.
2. Press shift + ⌘ + G and write the path: /System/Library/CoreServices/.
3. Copy SystemVersion.plist and paste it to the desktop.
4. Open the SystemVersion.plist on the desktop and change every "10.6.8" to "10.8.4".
5. Overwrite the SystemVersion.plist with the one on the desktop.
6. Open the App Store, then find Wunderlist and download it.
7. Change the"10.8.4" to "10.6.8".
8. Show the package contents of Wunderlist and delete everything in the Contents folder.
9. Install Contents_1 and Contents_2.
10. Unzip Contents 1 and 2, then drag everything in them into the Contents folder.
11. Install Resources.
12. Unzip Resources, and drag the folder into Contents.
13. Restart.
