The developers at Android Does made temporarily free Pro-version of their launcher Apex Launcher.
The Pro version of the app offers a number of features like advanced widget options, additional transition effects, gestures and so on.
The catch is that the free Pro version of Apex Launcher is activated for a single device in the app settings. How to get a permanent Pro-version for any device, please purchase it in a separate app for 299 rubles.
Activation takes place in the following way: install the free version of Apex Launcher, then choose settings Free Pro.
The campaign period is not specified.