Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
Online-RSVP.com - Beautiful online RSVP for wedding & other events. Create an online invitation, track your guests responses.
Bigbee - Connect with anyone, anywhere.
RSVPify - A powerful and awesomely customizable platform for selling tickets online for your event.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets