I bought AppScreen Pro Plan on AppSumo and am really enjoying this.

Let's face it. Creating, Resizing, Managing screenshots just take too much time.
With AppScreen, you can create professional looking screenshots will take less than 15 min.
You can focus on creating pretty screenshots & polishing marketing phrases.
Truly an awesome product!

You can check out my play store page as an example to see what you can do with AppScreen.
https://play.google.com/store/apps/details?id=app.treeger.treeger