Comparison

RED FPS vs StochasticGrain

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RED FPS

Calculate the maximum achievable frame rates for various RED camera systems. This unofficial tool was developed with input from film industry professionals for quick and easy use.

Highlights
  • Frame rate calculations
  • Supports multiple RED camera models
  • Developed with industry professionals
  • Quick and easy to use
  • Unofficial app
Features
Read full description

Developed alongside top working professionals in the film industry. Quick and easy calculations of the maximum achievable frame rate for any of RED's camera systems. Support for: WEAPON HELIUM 8K S35 WEAPON DRAGON 8K VV EPIC-W HELIUM 8K S35 WEAPON DRAGON 6K SCARLET-W DRAGON 5K RAVEN DRAGON 4.5K EPIC DRAGON 6K SCARLET DRAGON EPIC MYSTERIUM-X SCARLET MYSTERIUM-X This is an unofficial app.

About

StochasticGrain

Features
Read full description

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.

Screenshots

RED FPS4 screens
StochasticGrain4 screens

Verdict

The call

The clearest difference is in-app purchases: RED FPS at none against StochasticGrain's 2. RED FPS also leads on update cadence (every 2 months vs every 7 months) and iOS requirement (9.0 vs 17.6). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. StochasticGrain sells 2 one-off in-app purchases. RED FPS asks for nothing beyond the download.

UpkeepUpdate frequency

RED FPS ships an update every 2 months, StochasticGrain every 7 months. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

Scorecard3 real differences · 7 level
RED FPS versus StochasticGrain: the parameters behind the verdict, then further details
ParameterRED FPSStochasticGrain
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 months — betterEvery 7 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better17.6
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperKristopher PrygrockiIslam Seisembay

In-app purchases

None

RED FPS

No in-app purchases

2 purchases

StochasticGrain

One-time2
  • Small Coffee$0.99
  • Large Coffee$2.99

Questions

Is RED FPS free?
RED FPS is free to download, with no in-app purchases.
Is StochasticGrain free?
StochasticGrain is free to download, with in-app purchases available.
Do RED FPS or StochasticGrain have ads?
Neither RED FPS nor StochasticGrain shows ads.
Which is updated more often, RED FPS or StochasticGrain?
RED FPS ships an update every 2 months, and StochasticGrain every 7 months. Most recently, RED FPS was updated on November 2, 2026 and StochasticGrain on November 8, 2026.

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