Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
XCalSync - Automatically copy events between your calendars.
Smartmockups - Create stunning product mockups, easily and online.
PartyTalk - An efficient, fee-free event planning & ticketing tool
Placeit - Generate realistic product shots in seconds
Until - Until lets you create beautiful widgets to count down the days until meaningful events in your life.