$ cd ~/work && cat halal-camera.md
--- title: Halal Camera role: Solo: both platforms year: 2025 status: Shipped category: AI stack: [Kotlin, Swift, On-device face detection, CameraX, AVFoundation]
playGoogle: Google Play
github: Source ---
Halal Camera
A camera that blurs faces the moment you shoot.
A camera app that automatically detects and blurs faces immediately after capture, for people who want to photograph a place or an event without photographing the people in it. Built natively for both Android and iOS.
##Overview
Photographing a wedding hall, a classroom or a family gathering means capturing faces that should not be captured. Editing them out afterwards means the unblurred original existed, was stored, and possibly synced to a cloud backup before you got to it.
Halal Camera closes that window: detection and blurring happen right after capture, on the device, so the file that reaches storage is already filtered.
## Challenges
### The unfiltered original must never be written
The natural implementation saves the photo, then processes it. That leaves the original on disk, where a gallery scanner or a cloud backup can pick it up before it is replaced.
Processing happens on the in-memory frame before anything is persisted, so the only file that ever exists on disk is the filtered one.
##Results
- Published on Google Play, with a native iOS counterpart.
- Blurring applied before the file is written to storage.
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