iPhone: Launch Center Pro is one of the best launchers on the iPhone, but it's a bit confusing to use. Contact Center comes to us from the same developer, and simplifies the process of quickly sharing and sending notes to friends.
Contact Center is essentially a one-stop shop for messaging. You can set up shortcuts so you can instantly send someone a predefined message, share GIFs, launch FaceTime, and more. You can also set up triggers to send the most recent photo to a person, copy the clipboard into a new email message for someone, or just check out contact details. Essentially, it's a supercharged address book that gives you quick access to the people you communicate with the most, regardless of what service you talk to them on.