ProjectorCalc

I used this app years ago with a previous iOS. It seems they recently upgraded it, and I couldn't be happier. For anyone doing large or small scale 3-D projection mapping projects, this app is simply the best out there. It isn't perfect and there is room for improvement - but this is the most versatile, simple, and helpful tool out there. Provides fast, accurate, and even off axis calculations. I have programmed entire projection festivals using this one tool. Pretty amazing! A big thank you to the developers!

Just like LightCalc, ProjectorCalc is essential for calculating projector throws and projected image sizes on the fly. In all my tests the results have been spot on. I love how the keystone on the "Calculations" page changes in relation to the input data. It's a simple app that is well worth the price. It's an essential for anyone dealing with projectors.

For rest-of-the-world users it would be great to have this localized to metric system units. I find it a bit annoying to have to write down the results and convert them to meters! That's what it needs to be a 5 stars app.

This is great, but I'd like one more feature please. I'll add a star if an update included the ability to save projector info, so I could have all my projectors peloaded and called up at will.

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Requires that you already know all 3 parameters. If I already have that, why do I need this calculator? Want to be able to enter lens & screen size & get throw distance? Well this won't do it.