Since the invention of 3D Touch, when Apple launched the iPhone 6s and 6s Plus towards the end of 2015, there have been nice selection of apps that utilizes the iPhone's 3D Touch screen very well.
If you are having issues with using the 3D Touch on your iPhone 6s, iPhone 6s Plus, iPhone 7 or iPhone 7 Plus, then you can try changing the sensitivity level of the screen's retina.
Here's everything you need to know about Apple's 3D touch technology, how it works and its functionality?