How to set your Home button to double-tap to any application?
By default, double-clicking the home button will enable you to,
- go to Home screen
- go to Phone Favorites
- go to iPod
iPhoneHome is a free app that will allow you to set it to any application, even a phone number or blank email.
- Launch installer
- Make sure community sources is installed
- Scroll to utilities and install iPhoneHome
Once installed, launch the app and tap ‘Change App’ to bring up a scroll wheel of all the apps on your iPhone. Select the app which you like to be set as the shortcut and tap ‘Save and Quit’. Your iPhone will now reset and when you double-tap your home button now, it will open the app you selected.