
Trichromy
compact trichromatic camera
Only for iPhone
Free · In-App Purchases
iPhone
Discover and capture the ethereal beauty of trichromatic photography with this one of a kind camera app.
Trichromy is the process of creating color images by combining 3 monochromatic images: typically red, blue, green. Because the exposures are taken at separate times, they layer in ways that range from subtle shimmers to utterly psychedelic.
This app features a beautiful, straightforward interface that lets you experiment with trichromatic photography on your phone, no fancy equipment or complicated workflow required!
Use the main shutter to capture three successive exposures with a delay, which you can change with the slider. Or use the individual colored shutters to capture channels in any order and timing you want.
This method of producing color images goes back to the 19th century and was one of the earliest. Notably, Sergey Prokudin-Gorsky used the trichromic process to document large swaths of early 20th century Russia. Lear more about the history of this little known photographic process on our website, trichromy.net !
Ratings & Reviews
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Trichromy 1.6.1 fixes French localization bugs.
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Trichromy 1.6 introduces a number of improvements:
BETTER CAMERA PICKER:
Including support for Fusion Camera such as the 2× on all iPhone 15/16/17 series, and 8× on iPhone 17 Pro.
NEW CAPTURE FORMATS
You can stick with JPEG, or now choose HEIC (smaller file size) or TIFF (lossless quality, very large file size: ideal if you're going to print your images or use them for art projects)
A NEW, OPTIONAL LIQUID GLASS THEME
if you're on iOS 26 and you want bouncy, shiny controls, you're in luck!
The app icon also now behaves better with clear/tinted modes.
SUPPORT FOR LANDSCAPE SHOOTING
The interface will now reorient when holding your phone in landscape, and the correct EXIF metadata will be written.
ENTIRELY FREE APP
The watermark options were previously locked behind an in-app purchase; that is no longer the case. The app is now entirely free, and includes a voluntary tipping system.
AND ALSO
a number of smaller quality of life improvements such as support for saving the GPS location of the image in its metadata, a French localization, the ability to keep the viewfinder corners square, bugfixes.
The developer, Héliographe, Inc, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Heliographe, Inc
- Size
- 2.1 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- Languages
- English and French
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Large Tip USD 19.99
- Medium Tip USD 9.99
- Small Tip USD 4.99
- Full Unlock USD 4.99
- Copyright
- © Héliographe, Inc