Chroia: Riso Print Camera
Shoot Riso. Live Halftone.
Only for iPhone
Free · In‑App Purchases
iPhone
Real two-ink color separation, halftone dots or riso grain, five paper stocks — a real risograph press, live in your viewfinder. Seven print processes, not filters.
A camera that reproduces risograph printing — multi-plate color
separation, halftone dot screens, and intentional plate
misregistration, rendered live in your viewfinder and applied in
full the moment you press the shutter.
SEVEN REAL PRINT PROCESSES
* Riso Duotone — color-separated into pink + cobalt plates, overprinted
* Flat Screenprint — halftone-free spot color
* Offset Newsprint — a genuine CMY rosette, vintage press texture
* Photocopy — Xerox-style decay and scan noise (free)
* Engraving — single-plate crosshatch
* Mimeograph — blocky ink blotches
* Spot Color Halftone — the most saturated color survives a black dot screen
Each one is a genuinely different rendering pipeline — not one
filter with seven color presets.
EVERY VALUE IS A SLIDER
Pick a catalog spot ink or mix your own with hue, saturation, and
brightness — plus paper stock and paper grain, screen angle, dot
width, halftone dots or riso grain, and misregistration strength.
Nothing is hardcoded to a preset. Dial in your own look.
WHAT YOU SEE IS WHAT YOU PRINT
Riso Duotone and every single-plate process render in full in the
viewfinder — every ink plate and the intentional misregistration,
exactly as saved. Offset Newsprint previews one CMY plate live for
speed and composites all three at the shutter.
FREE TO START
Shoot with Photocopy at no cost. Full Unlock is a single one-time
purchase ($5.99, not a subscription) that opens the other six
mechanisms: Riso Duotone, Flat Screenprint, Offset Newsprint,
Engraving, Mimeograph, and Spot Color Halftone.
EVERYTHING ELSE YOU'D EXPECT
* HEIC capture, saved straight to a dedicated "Chroia" album in your
Photos library — no separate account, no cloud
* The mechanism you shot with is written into every photo's own EXIF
* English and Japanese from day one
No ads. No tracking.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Riso Duotone, Reprinted
Riso Duotone looks different now — and closer to a real press.
• True color separation: each ink prints where its color actually is
in your shot. Shadows print dark, highlights stay paper.
• What you see is what you save: the viewfinder now shows both plates
and the misregistration, exactly as captured.
• Grain screen: switch Riso Duotone from halftone dots to the
stochastic grain real riso machines print with.
• Paper stock: Natural, White, Newsprint, Gray or Kraft, with
adjustable paper grain printed into every photo (all mechanisms
except Photocopy).
Included in Full Unlock.
The developer, Jaehoon Lee, 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 Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jaehoon Lee
- Size
- 4.3 MB
- Category
- Photo & Video
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Full Unlock $5.99
- Copyright
- © 2026 Chroia
