PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Hologram - Frontend Development and Design
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
CleanMyMac X - Clean, protect and speed up your Mac
PiPifier - PiPifier is a macOS 10.
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.