GiddyUp is a fun and simple way to schedule and organize meet-ups with your contacts via your Android and iOS-powered device(s). Right from scheduling a new event to informing your contacts about it to tracking progress of your invitees via real-time chat, GiddyUp offers ample assistance for keeping things relatively simple and uncluttered all the way through. All it takes to get signed up with the service is your mobile number (just like WhatsApp and Viber). Invitations/RSVP requests are sent to the expected participants via the app’s notification alerts, as well as text messages (for contacts who are not already on GiddyUp). Scheduling and informing your contacts about new events via GiddyUp is as simple as one-two-three.