XCalSync - Automatically copy events between your calendars.
Mockuuups Studio - Fast and easy way to create product mockups on macOS, Windows and Linux.
JustPlan - JustPlan is a marketplace that connects customers with high quality, reliable, and vetted vendors who offer products and services for small events, gatherings, and parties.
Smartmockups - Create stunning product mockups, easily and online.
Repartee - Social event planning rethought for the mobile era
MockMagic - A free, easy-to-use device mockup generator