Watchout is described as 'WATCHOUT multi-display software is your fast track to creating spectacular shows. Use WATCHOUT to compose and manage all the different media elements in your show – video, still images, animations, graphics, live feeds, sound – and then play it back on multiple displays' and is a Projection Mapping App in the Video & Movies category. There are more than 10 alternatives to Watchout for Windows, Mac and Linux. The best alternative is QLab, which is free. Other great apps like Watchout are Isadora (Paid), Resolume Avenue (Paid), Smode Studio (Paid) and VPT (Free).
FaçadeSignage is the easy to use projection mapping and media server software that lets you use a PC and one (or more) projectors to “dress” any physical object or architectural structure with digital media.
This software is compacted all essential functions like NDI,MIDI ,present PPT with animation and so on,it is power ,mostly been used in LED broadcast filed,it can achieve pixel to pixel display and his price is very appealing.