Web based presentation app from Microsoft using sliding screens. Available as an App and online. The video is: https://www.youtube.com/watch?v=Jw-g6IuBVJE#t=25
The link to itunes store is: https://itunes.apple.com/app/id929856545 ;
You can combine text, headers, pictures and captions from a variety of sources including One Drive, Web and Social Media.
Send people the link or embed in your blog, website etc
HTML5 with responsive design and a design engine to make it easier to format content.
Here is a rough design that took me about 5 minutes of playing and not really understanding quite how it puts it all together: https://sway.com/BP3HtRdZ4glWuYtA ;