AppStore Screens generates beautiful screens of your app to Apple App Store and Google Play Store.
Check out this video to see how to create beautiful screens of an app. It is all done from the phone. Once the screens are created, you can upload the high resolution images to Apple App Store or Google Play Store from your desktop computer.
Yes this is a free service.
This app uses Dropbox single sign on (SSO). You will need a Dropbox account.
All data is stored in your Dropbox. A specific folder is created for this app.
As-is.