StochasticGrain vs Loopix
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
StochasticGrain
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Unlike simple noise overlays, this app uses a physics-based approach where grain density responds to image brightness, just like analog film. Shadows show more grain, highlights stay cleaner. The result feels organic rather than digital. Built on academic research by Newson, Delon, and Galerne (2017) modeling stochastic film grain through Boolean models, with real-time optimizations informed by Zhang et al.'s 2023 SIGGRAPH work. These papers describe how actual silver halide crystals distribute in photographic emulsion. Exposure-dependent grain that responds to image luminance Real-time preview as you adjust Designed for film photography enthusiasts A passion project for anyone who appreciates the texture of analog photography.
Loopix
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Loopix turns your iPhone into a real film camera. 30 handcrafted film presets with per-channel RGB tone curves ā applied in real time, right in the viewfinder. No editing, no post-processing. Shoot and get stunning film-look photos instantly. FILM PRESETS ⢠30 presets inspired by Kodak, Fuji, and Ilford film stocks ⢠Portra, Ektar, Velvia, Provia, Superia ā iconic color film looks ⢠Tri-X 400, BwXX, T-MAX 3200 ā dramatic pushed black & white ⢠HP5, Delta, Pan F ā classic B&W emulations ⢠Per-channel RGB tone curves for authentic film response ⢠Per-channel tone curves pair with film-inspired grain LIVE FILM GRAIN ⢠GPU-accelerated organic film grain rendered in real time ⢠Grain scales naturally across all resolutions ⢠Looks identical in viewfinder and exported photos ⢠Textured and organic ā like real 35mm film stock SIMPLE & FAST ⢠Point and shoot ā no complicated settings ⢠Full-resolution HEIC export with Display P3 wide color ⢠EV compensation wheel for quick exposure control ⢠AE/AF lock for consistent shots ⢠Rule-of-thirds grid overlay ⢠Left and right-handed shutter layout LIFETIME ā NO SUBSCRIPTION ⢠3 presets free ā Neutral, HIE Infra, Portra ⢠Unlock 28 more film looks with one purchase ⢠Every future preset included, forever ⢠No watermark, full-resolution export Loopix is the film camera app for photographers who want the Kodak Portra or Fuji Velvia look without Lightroom or VSCO. Open the app, pick a preset, shoot. That's it.
Screenshots
Verdict
The clearest difference is update cadence: Loopix at every 4 days against StochasticGrain's every 7 months. StochasticGrain's advantage is iOS requirement (17.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. StochasticGrain sells 2 one-off in-app purchases and Loopix sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
StochasticGrain ships an update every 7 months, Loopix every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.
| Parameter | StochasticGrain | Loopix |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 7 months | Every 4 days ā better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad ā better |
| Requires iOS | 17.6 ā better | 26.0 |
| Further details ā not scored | ||
| Size | 2 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Islam Seisembay | Denis Tronin |
In-app purchases
StochasticGrain
- Small Coffee$0.99
- Large Coffee$2.99
Loopix
- Monthly Subscription$3.991 Month
- Annual Subscription$34.991 Year
- Loopix Lifetime$9.99









