Hey App Inventors -
I wanted to share a couple of free extensions that we developed at Thunkable that leverage two of the most powerful artificial intelligence tools currently available--the Microsoft Emotion Recognizer (based on the Microsoft Emotion API) and the Image Recognizer (based on the Microsoft Computer Vision API).
Both extensions allow users to select a picture they have already taken or take a new one and return a most likely emotion (for an image with a single face) or a one line description of the image. More details on how these blocks work can be found here
Below are links to the extensions --