$9.99
In-App Purchases

Details

  • Released
  • Updated
  • February 12, 2019
  • December 2, 2025
Gel Swatch Library video #1 for iPhone
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Gel Swatch Library screenshot #8 for iPhone
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About

This app allows lighting professionals to easily browse, search, and compare over 1,600 gel color filters from major manufacturers. It offers detailed spectral data, CMY/RGB percentages, DMX values, and a live camera preview feature for visualizing colors.

Browse 1,600+ gel color filters
Search by name or number
Compare similar and complementary colors
View Spectral Energy Distribution graphs
See CMY/RGB percentages and DMX values
Live camera color preview
Preview colors over photos
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What's New in Gel Swatch Library

3.1.10

December 2, 2025

We have just updated the support email and improved the appearance of several features.

1

In-App Purchases

$2.99

Visual Package

Use Photos or Camera behind Gels

User reviews

Bom, mas falta opções de salvamento

O app é muito bom, muitas opções de gel, a precisão das cores é ótima. No entanto, não existe a possibilidade de exportar/salvar as imagens. Sugestão: na pasta de projetos, permitir que salve as imagem com os filtros, além das anotações, assim como permitir salvar e exportar como IMG e PDF, junto ao código de cores das gelatinas
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Great app

I’ve had this app for over a decade and it’s great. Solid.

Almost Perfect

Great app! I would love to be able to cross compare ANY 2 gels, not just what is comparable to the first selected gel.
Also once you add a gel to a project, you should be able to click on those gels and see the waveform and transmission %. Not just attached notes.
Fix those two things and you’ve got a 5 star app!
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Fantastic App

Great tool if you take the time to set your screens brightness and color temperature this app renders color really well. Also has nice features to make your life easier.

Essential Cinematography iPhone app

Thank you for the latest Gel Swatch iPhone app update.

The ability to use my iPhones camera or a calibrated photo to preview thousands of gel colors plus compare gels side by side over the image?

This update is a game changer for my location scouts, tech meetings and those quick “What gel looks good here?” moments.

I can’t wait to use it out in the field and on-set. It’s top of the stack now in my iPhones Cinematography Apps folder.

One suggestion on improving the app.

If the apps photo preview feature gave us the ability to selectively erase or paint on an area of the color gel overlay (for still photos only, not the live camera) this would really help in coming up with complex color combos. The ability to show Production Designers, Set Painters and Props people where a gel color wash will play on a live set would be incredible for an iPhone app.

Tiffen used to have 2 iPhone apps that allowed masking to a certain degree with their camera filters overlaid on top of still photos. They sold it off I believe and it’s now called “DFT” aka Digital Film Tools in the iPhone App Store. It still functions the same and I use it all the time.

I don’t know how complex app coding is but just a thought on taking the app to the next level.

Have a great New Year!

Kurt

Kurt Rauf
Director/Cinematographer
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Developer apps

FAQ

What does the Gel Swatch Library app do?

The Gel Swatch Library app provides a digital catalog of over 1,600 gel color filters from popular manufacturers like Apollo, GAM, Lee, and Rosco. It allows lighting production personnel to browse, search, compare colors, and view detailed information such as Spectral Energy Distribution graphs, CMY/RGB percentages, and DMX values.

What are the key features of the Gel Swatch Library?

Key features include searching gels by name or number, sorting by swatch book order, comparing colors, examining spectral data, viewing CMY/RGB and DMX values, and a recently viewed colors list. It also offers a live camera preview and the ability to see gels over your own photos, available via in-app purchase.

Is the Gel Swatch Library app free to use?

The core functionality of the Gel Swatch Library app, including browsing and searching over 1,600 gel filters, is free. However, advanced features like live camera previews and previewing gels over your own photos are available as in-app purchases. These premium features can be previewed for free with pre-selected colors.

Who would benefit from using the Gel Swatch Library app?

This app is ideal for professionals and students in lighting production, including those working in theaters, churches, cruise ships, corporate events, nightclubs, and for theatrical dealers. Anyone involved in selecting or specifying lighting gel colors will find this app useful.

What devices is the Gel Swatch Library app compatible with?

The description mentions compatibility with iPhone and iPod touch, suggesting it is an iOS application. Users can examine spectral graphs by turning their device sideways, indicating it is designed for mobile use on these platforms.