Previously I mentioned a neat library enabling you to create coachmarks to guide users through your apps, and a library allowing you to use pre-made images or views as a walkthrough teaching users how to use your app.
Here’s a nice library from Patrick Trillsam for creating nice paged tutorials called ICETutorial.
With ICETutorial you can quickly make your walkthrough with images, and also add titles, subtitles (with different fonts and coloring), enable crossfade transitions between tutorial pages and set up automatic scrolling through the tutorial if desired.
You can find ICETutorial on Github here.
A nice easy way to create in app tutorials.