Extrosy

Cameras that compute.
Apps that stay on your device.

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

Shipping and in the workshop

One app is headed to Google Play now; the rest are working software in active development, being tuned on real scenes before release.

MotionAmp

In development

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.

PyroSim

In development

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.

LongExpo PC

In development

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.

SilkShutter for iOS

In development

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

Private by design, not by policy

01 / ON-DEVICE

Everything runs locally

Capture, processing, and output all happen on your device's own GPU. Every app works in airplane mode.

02 / NO ACCOUNTS

Nothing to sign up for

No accounts, no analytics, no tracking. Your photos go to your gallery and nowhere else.

03 / REAL INSTRUMENTS

Tools, not filters

Manual controls, honest processing, full-quality output with proper metadata — apps built like camera equipment, not toys.