Simple. Powerful.
Comprehensive suite of Lighting Design and Electrics utilities for theatre and film.

"ShowTool LD packs 4 applications into one [...] Buying the four individual apps through iTunes can cost up to $7.97" -


Quickly calculate beam angles, throw distances and beam diameter. 2 easy to use modes providing a choice of speed or super accuracy.


Powerful functionality for calculating the number of cuts and wastage from all major gel manufacturers and a wide range of frame sizes. Specify your own frame size or choose from a wide range of standard lanterns.


Quickly input DMX values and see the dip switches change live in front of you! Works with both major dip switch configurations.
Fully integrated with the DMX Calc, see below.


Set the local address and universe to see the global DMX address, or set the global address to see the local address and universe simply and swiftly.

Specify channels per fixture and this will update a list of fixtures with the various addresses. Need to set the dips for a fixture? Simply click the button for each fixture and the Dips Calc will load showing you just how to set the switches.

Quick and easy power calculations in both single and 3 phase configurations. Specify current and voltage and quickly see how many of your selected fixture can be powered by the circuit.

All features provide full metric and imperial options as well as providing international number formatting support.

More great features and utilities planned, with free updates for all users.

If you have any suggestions or find any problems please let me know through the support site.

What’s New

Version 3.1

Support for iOS 12

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

ArataTakú ,

Very useful for anyone who works in Show and Event Lighting

I was weary before buying the bundle (ShowTool LD & Swatch apps). After purchasing them, I can confirm they are very helpful and well designed apps. You won't regret getting either app!

Great app for Lighting Designers, Directors, Technicians and Master Electricians.

Even if you know how many gel cuts can be made from a full Lee sheet or how to calculate beam throws, this app gives you easier and quicker onsite methods. It's much cleaner and organized to plug in numbers than to type an equation into a calculator.

AaronCole ,

Great app!

This is a great app! I love having the dip switch calculator. I bought the app for that reason but now use it for so many things. Makes my job so much better.

JohnDelfino ,


What the app claims to do, it does quickly and well. Can't ask for much more than that.

Would I mind more features? No. But I'd rather less features that are more polished and work perfectly than a ton of stuff thrown together that barely works.

I think the price is slightly steep considering most of this can be done with free apps as well, but there is value in dependability.

Don't be afraid to add more stuff in the future, though, dev.


Daniel Murfin
15.1 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Daniel Murfin 2007-2018


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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