Twitter is a free app that lets you
connect with people, express yourself, and discover more about all the things
you love. Previously, Twitter has a 3D Touch functionality limited to quick actions on the
Home screen only. 
But with the latest update version of Twitter for iOS, it now
supports for 3D Touch Peek and Pop gestures that is you can now press on
tweets, inks, pictures, and profiles to bring up a preview. Swiping a peek
upwards gives you shortcuts to share via direction message, iOS extensions, and
mute, block, or report a profile which makes you easier to use.

You can download Twitter from the App Store for free. Download it and give a try with peek and pop features using it.

         Twitter for iOS