BookWidgets - BookWidgets is an excellent application that let you create engaging exercises in minutes and easily share a varied variety of beautiful and fun activities with your classroom and others.
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
Padlet - Visual boards for organizing anything.
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Socrative - Socrative helps teachers engage the class with educational activities to measure and visualize...
PiPifier - PiPifier is a macOS 10.