flippr

The app is quite intuitive, you can create multiple groups for your widgets and shortcuts, in order to add icons for various apps. You can add shortcuts for various apps, including social networks, messaging, productivity and even weather apps. It lets you read tweets and messages, while playing a game in the background.
 
You can change the size of widgets, adjust columns, rows or show border and background. It lets you change the order of widgets in a group and adjust the bubble marker position on the screen. Moreover, you can change the marker transparency and color, overlay settings and enable the app on boot. You can arrange apps in a blacklist and when you run such an app, Flippr will be automatically disabled.