Extrosy
Extrosy builds small, focused camera and creative apps around one idea: your phone's sensor plus serious computation can do what used to take dedicated gear — and it can do it entirely offline, with no account, no analytics, and no cloud.
The apps
One app is headed to Google Play now; the rest are working software in active development, being tuned on real scenes before release.
ANDROID · IOS PORT IN DEVELOPMENT
Real long-exposure photography with no tripod and no ND filters. SilkShutter records a stream of short, sharp frames, registers every frame to the scene to cancel your handshake, and blends them on the GPU into a single photograph — silky waterfalls, light trails, vanished crowds — live while you shoot, or from any video you import. Output up to 8K, finished in-app.
ANDROID
A motion-microscope for your phone. MotionAmp measures the tiny motion in a live camera feed with custom optical flow and amplifies it until you can see it — structures swaying, machinery vibrating, things that look perfectly still to the naked eye.
ANDROID
Design fireworks shows on a phone. A GPU-rendered simulator with a recursive firework builder — shells inside shells inside shells — plus scenes, weather, and a piano-roll show editor that can choreograph an entire display to music, beat by beat.
WINDOWS
The desktop original that SilkShutter grew out of. Turns video files into long-exposure photographs on the GPU with 16-bit precision — the research bench where the alignment engines are invented before they ship on mobile.
IPHONE · METAL
A native port of SilkShutter to the iPhone — same alignment engines and blend modes, rebuilt in Swift on Metal.
How they're built
Capture, processing, and output all happen on your device's own GPU. Every app works in airplane mode.
No accounts, no analytics, no tracking. Your photos go to your gallery and nowhere else.
Manual controls, honest processing, full-quality output with proper metadata — apps built like camera equipment, not toys.