Since the addition of 3D Touch to the iPhone 6s, iOS users have enjoyed more ways to interact with their devices. App icons are no different, with many supporting quick actions directly from the home screen. Now that iOS 9 has been jailbroken, developers are setting their sights on expanding the capabilities of 3D Touch. The tweak Appendix seeks to add more functionality to app folders, by making it possible to open apps directly by invoking 3D Touch.
Most stock and popular third-party apps on the iPhone 6s and 6s Plus now feature quick action menus that allow you to to perform tasks directly from the Home screen. Quick Actions are little shortcuts users can access by performing a long or hard touch on app icon. For example, pressing hard on the Phone icon will bring up a list of your frequently used Contacts. Third-party apps such as Facebook also allow users to acces commonly used features from the Home screen such as writing a status update by using Quick Actions.
One of the most significant new features on the iPhone 6s and iPhone 6s Plus is 3D Touch. The latest iPhone packs a pressure-sensitive display which can be used to invoke menus directly from the home screen. Now thanks to the jailbreak tweak Forcy, those with older devices running iOS 9 can get in on the action. Once installed, Forcy simulates the functionality of 3D Touch on the home screen.
3D Touch technology, which debuted with the iPhone 6s models, gives the touch screen another dimension of functionality, allowing users to perform the usual soft taps, and adding two levels of harder taps to activate "Peek and Pop" features. While Apple hails the technology as "the next generation of Multi-Touch," some lament it as simply right-click functionality that could have been achieved with a long press (which will very likely show up as a jailbreak option for older iPhones).
3D Touch is a new feature found only on the iPhone 6s and 6s Plus. If you own one of these devices and the feature still isn't working here are some troubleshooting tips.
Make sure 3D Touch is enabled :
You can click here to learn how to enable/disable 3D Touch.
Adjust 3D Touch sensitivity: