Despite the belated nature of the review (Ive had the app for over three years now), this is one of the best app purchases Ive ever made as a professional film lighting technician.
As both a means of making color suggestions to cinematographers, as well as finding alternatives to colors Ive used in the past, its invaluable. On top of that, Ive used it countless times to identify an unmarked cut of gel pulled from the truck (as long as theres a catalog number on it somewhere, this app can pinpoint it).
Couldnt ask for more. Thanks so much, Wybron!
mellors about Gel Swatch Library, v2.0.2