DejaView Camera vs Trichromy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DejaView Camera
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Never miss a moment again. Create a collage of four images from the past. Set the delay, save the four original images, and create an animated gif all with the press of a button!
Trichromy
Explore trichromatic photography with this unique camera app. Capture stunning color images by layering three monochromatic exposures, offering a distinctive visual style. Experiment with different timings and capture orders for psychedelic or subtle effects.
- Trichromatic photography capture
- Layering of 3 monochromatic images
- Adjustable delay between exposures
- Individual colored shutter controls
- Straightforward user interface
- Historical photographic process exploration
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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 !
Screenshots
Verdict
The clearest difference is price: Trichromy at Free against DejaView Camera's $1.99. Trichromy also leads on update cadence (every 3 weeks vs every 6 weeks) and iOS requirement (15.0 vs 18.6). DejaView Camera's advantage is in-app purchases (none vs 4). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Trichromy is free to download; DejaView Camera costs $1.99 up front. Trichromy sells 4 one-off in-app purchases. DejaView Camera asks for nothing beyond the download.
DejaView Camera ships an update every 6 weeks, Trichromy every 3 weeks. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.
| Parameter | DejaView Camera | Trichromy |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (8 ratings) — better |
| Positive reviews | — | 80.0% of reviews |
| Number of ratings | — | 8 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | (optional.is) | Héliographe, Inc |
In-app purchases
DejaView Camera
No in-app purchases
Trichromy
- Small Tip$4.99
- Full Unlock$4.99
- Medium Tip$9.99
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- Large Tip$19.99









