# Trichromy — compact trichromatic camera > App for creating trichromatic color photos by layering three monochromatic exposures. (iPhone/iPad app by Héliographe, Inc.) - Source: https://appshunter.io/ios/app/trichromy/id6448881187 (this page in markdown: same URL + `.md`) - Developer: [Héliographe, Inc](https://appshunter.io/developer/1784071997) - Category: Photo & Video - Price: Free with in-app purchases - Rating: 5.00/5 from 7 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 2 MB - Languages: American English, French (France) - Released: 2023-05-10 - Data updated: 2026-08-28 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/trichromy/id6448881187/reviews.md ## What is Trichromy? 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 ! ## Key features - Trichromatic photography capture - Layering of 3 monochromatic images - Adjustable delay between exposures - Individual colored shutter controls - Straightforward user interface - Historical photographic process exploration ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Medium Tip | $9.99 | one-time | | Large Tip | $19.99 | one-time | | Small Tip | $4.99 | one-time | | Full Unlock | $4.99 | one-time | ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/trichromy/id6448881187/reviews.md ### 5/5 — 👍 *2025-12-03* Love using this app, results are awesome. ### 5/5 — Amazing hidden gem *2025-11-07* This app is so cool. It was a surprise to me to learn that trichromy was a photograph technique of the past. You can get so many great results ### 5/5 — Really fun! *2025-11-07* This app is really fun! I love messing with the settings and getting some really unique photos. Adds a lot of fun and spontaneity to my photography. Also, the developer has created other really good apps for photography! They really have a handle on what makes for a good photo app! **Developer response:** Thank you so much for your support and kind words! ### 5/5 — Yassss *2024-04-21* 100% recommend ### 3/5 — Great idea. Ok execution. *2023-07-18* The speed slider is very difficult to grab and operate. The slider is also far too close to the main shutter button, meaning it is very easy to press the main shutter button whilst trying to use the speed slider. This is very annoying because you have to wait for it to take three different photos before you can try again. Would love to see this fixed in a future update. **Developer response:** Thanks for your comment! The slider has been redesigned and improved, try it! ## Frequently asked questions about Trichromy ### What is trichromatic photography? Trichromatic photography is a process of creating color images by combining three separate monochromatic exposures, typically in red, blue, and green. This layering technique can produce unique visual effects ranging from subtle shimmers to psychedelic patterns. ### How does Trichromy capture photos? Trichromy captures photos by taking three successive exposures with a customizable delay. You can also use individual colored shutters to capture channels in any order and timing you desire, offering creative control. ### Is Trichromy free to use? Yes, Trichromy is free to download and use. The app also offers in-app purchases, which may unlock additional features or content for users who wish to enhance their experience. ### What devices does Trichromy support? Trichromy is available for iPhone and iPod devices. It is designed to work on these Apple mobile platforms, allowing users to explore trichromatic photography on their compatible devices. ### How often is Trichromy updated? The latest version of Trichromy is 1.6.1, last updated on November 8, 2025. This indicates that the app receives regular updates to improve performance and add new functionalities. ### What is the age rating for Trichromy? Trichromy has an age rating of 4+. This means it is suitable for users of all ages, with no content restrictions that would prevent younger audiences from using the application. ### Can I learn more about the history of trichromatic photography with Trichromy? Yes, the app encourages users to learn more about the history of trichromatic photography on its website, trichromy.net. This resource provides historical context for the photographic process featured in the app. ### Does Trichromy have ads? No, Trichromy does not contain advertisements. As indicated by the 'hasAds' flag, users can enjoy an ad-free experience while exploring and creating trichromatic photographs. ## Version history (last 5 releases) ### 1.6.1 — 2025-11-08 Trichromy 1.6.1 fixes French localization bugs. -- 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. ### 1.6 — 2025-11-06 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. ### 1.52 — 2025-02-13 This version updates an API deprecation in iOS 18 that does not affect users, but makes the app more future proof. It also fixes a bug where the date/time stamps on the picture would update in real time - they now stay locked to when the picture was actually taken (like if you take trichromy pictures at 23:59 and set the timestamp at 00:00). If you're reading this and enjoy the app, please leave us a review! It helps a lot :) ### 1.51 — 2024-04-11 This minor update enables capturing with the volume button on devices running iOS 17.2 and later. ### 1.50 — 2024-04-03 Trichromy 1.5 adds a new OPTIONS screen, that lets you customize your final image, such as by including a Trichromy watermark or the capture date/time. This requires a one time in-app purchase. All other existing functionality remains free! ## Apps similar to Trichromy | App | Rating | Price | Category | | --- | --- | --- | --- | | [Thrivestone](https://appshunter.io/ios/app/thrivestone/id464148400) | 4.8 (26) | Free | Photo & Video | | [WengiWengi](https://appshunter.io/ios/app/wengiwengi/id1557565886) | 3.6 (5) | Free | Photo & Video | | [Glitch X - Psychedelic Filters](https://appshunter.io/ios/app/glitch-x-psychedelic-filters/id6467765815) | 4.4 (5) | Free | Photo & Video | | [Unusual Camera](https://appshunter.io/ios/app/unusual-camera/id1179196616) | 4.8 (10) | Free | Photo & Video | | [Trichromatic](https://appshunter.io/ios/app/trichromatic/id1591806612) | 5.0 (1) | Free | Photo & Video | | [PIXEL86: Retro Media Editor](https://appshunter.io/ios/app/pixel86-retro-media-editor/id1641007991) | 4.7 (40) | Free | Photo & Video | ## More apps by Héliographe, Inc - [BitCam](https://appshunter.io/ios/app/bitcam/id1114990619) - [65×24 PANORAMIC CAMERA](https://appshunter.io/ios/app/6524-panoramic-camera/id6447838860) - [Matte Viewer](https://appshunter.io/ios/app/matte-viewer/id6476831058) - [EXIF Inspector](https://appshunter.io/ios/app/exif-inspector/id6497877425) - [LUT Lab](https://appshunter.io/ios/app/lut-lab/id6740864091) All apps by Héliographe, Inc: https://appshunter.io/developer/1784071997 ## Related topics [psychedelic camera](https://appshunter.io/ios/topics/psychedelic-camera) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*