Film Emulation for iOS
Real film.
Real rendering.
Granul models the optical and chemical characteristics of analog film—per-channel tone curves, luminance-dependent grain, highlight halation, and color crossover—then applies them to your photos in real time.
What Makes It Different
This isn't another filter pack. Each stock is built from the physics of real film.
Per-channel tone curves
Modeled from actual film response data, each color channel has its own distinct curve.
Luminance-dependent grain
More grain in midtones, less in shadows and highlights—exactly like real silver halide crystals.
Highlight halation
The soft red-orange glow around bright areas, caused by light bouncing off the film base.
Color crossover
The subtle hue shifts that occur at different exposure levels, unique to each emulsion.
10 Film Stocks
Each emulsion, faithfully modeled.
Three stocks are free forever. Upgrade to Pro for all 10 plus every new stock added in future updates.
The Rendering Pipeline
Six stages. One authentic result.
Color Curves
Per-channel response modeling
Crossover
Exposure-dependent hue shifts
Saturation
Film-specific color intensity
Halation
Base-layer light scatter
Grain
Luminance-dependent noise
Vignette
Optical falloff simulation
Shoot or Import
A complete workflow.
Live Camera Preview
See your selected film stock applied in real time before you shoot.
Import Any Photo
Apply film emulation to any image from your photo library.
Adjustable Intensity
Dial the effect from subtle to full with a single slider.
Before/After Compare
Swipe to instantly compare your original with the film look.
Full-Resolution Export
Export at full resolution with EXIF metadata stamping.
GPU Accelerated
Built with Metal and Core Image for fast rendering.
Free & Pro
Start free. Upgrade when you're ready.
Free
$0
Everything you need to get started with film emulation.
- 3 classic stocks: Portra 400, Gold 200, Tri-X 400
- Full rendering pipeline
- Live camera preview
- Export with watermark
Pro
$9.99
One-time purchase
The complete Granul experience with all current and future stocks.
- All 10 film stocks
- Every future stock update included
- No watermark on exports
- Full-resolution EXIF export
Ready to shoot on film?
Download Granul for free and start with Portra 400, Gold 200, and Tri-X 400. No account required.