Photobooth Softwares
This is the most essential of all in your photobooth business. Make sure the software you choose is something easy for you to trouble shoot and learn because it might just be the one you'll be using for a majority of your equipment.
The photobooth software will help you make your guests experience an unforgettable event that will be difficult to replicate in the hands of a regular non photobooth owner. Such as the Glam Filter or Green Screen! You'll here it tossed here and there whether it's by your clients request or a easier way of using that feature.
Here's what I personally recommend:
Darkroom Booth (Windows DSLR, iPad)
Curator (iPad DSLR, iPad Booth, 360 Booth, Roamer)
Lumabooth (iPad DSLR, iPad Booth,360 Booth)