Of all of these, I love PicPlayPost the most. That said, its a great list, and Instagram Stories is on the rise so these will help you up your game.
#4: Create Simple Vertical Slideshows PicPlayPost is also effective for creating vertical photo/video slideshows for your Instagram stories. To create a slideshow, start a new project and tap Create a Slideshow. Create collage slideshows with the PicPlayPost app. Another option for vertical slideshows is the Diptic app. It’s available for iOS ($2.99) and Android ($0.99). It lets you combine multiple clips and photos into slideshows of almost any aspect ratio. You’ll need to make an in-app purchase to get access to non-square layouts such as portrait and landscape.