ClashCaller is designed to be easy, simple and powerful. If you haven't used it before, this is all you need: the following video goes over the basics of using ClashCaller.
More Advanced Features
There are a lot of cool things ClashCaller can do! From adding flexible timers to calls, notes to targets, reviews on attacks, or analyzing past wars, it can help your clan run wars more effectively and get better over time. The following video goes a little more in depth on some of these features.