App inventor has made it much easier to create apps for people like you and me.
But, let me ask you a question, Is App Inventor helping you to create any app that you have imagined?
I know your answer
It’s a clear No!!
And the reason is its limited features

No wonder! I also used to feel the same until I have not used Web API component.
But, once I have started to use it, It has opened an internet full of features for my app. Because now I can include data from Youtube, Facebook, use apps like Google translate, Microsoft emotion recogniser etc.
So, my app can literally have features from other apps.
I have put all the information about using API in this advanced training course.
You will learn everything by doing i.e; by creating an app.

Following are a few of the benefits:
Add so many amazing features to your app using APIs
Add search functionality to your app using Lists
Create a design that hooks your app user.

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SKILLS YOU WILL GAIN
Use advanced components of App Inventor like lists, tiny db, variables, Web API and more
Understand how app inventor works
WHAT YOU WILL LEARN
Create a translator app
Designing an app