Microsoft has updated their Helps and Tips app to version 825.
The Help+Tips app for Windows Phone 8.1 is a great way to learn basics, pro tips, and random in-between stuff that you just never noticed before. You can get answers to frequently-asked questions, search for help articles, and see a collection of videos and animated tips.
With this version the app has now exited beta, with support for 19 languages, and with better performance and stability—especially on low memory phones.
Find the app in the Windows Phone Store here.