Great for presenters, speakers, and teachers

If you get up in front of people and display your Mac to others, you want this app. The primary use-case: You get up, plug in your external monitor or projector, and start sidemirror. You can then have your presentation appear on the projector and keep your desktop nice and tidy. SideMirror gives you a Mirror on the projector - a window appears on your desktop and you can see what your crowd sees.

Easy to use, totally worth the moneys spent. A+++ would sidemirror again.

jwolgamott about Side Mirror - for Presenters