Comparison

iTurbo3D vs G4SR 2026

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

Head to head
About

iTurbo3D

Features
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iTurbo 3D brings interactive three-dimensional turbulence simulation to iPhone. A pseudo-spectral incompressible Navier-Stokes solver evolves the velocity field while a Metal volume ray marcher displays the flow as it develops. Explore the volume using touch controls: drag to orbit, pinch to zoom, and double-tap to restore the camera. Switch between vorticity, Q-criterion, kinetic energy, and helicity, with a selection of scientific colormaps and light or dark backgrounds. Configure Taylor-Green or random turbulence, choose a 32 cubed, 64 cubed, or 128 cubed grid, set the Reynolds number, and adjust forcing. Higher grid resolutions reveal finer structures while using progressively more memory and processing power. Pause, resume, advance one step, or reset the simulation from the bottom toolbar. Live status values show the time step, iteration, simulation time, step rate, energy, and enstrophy. Expand the diagnostics to inspect energy history and the energy spectrum. Whether you are teaching fluid mechanics, studying turbulence, or simply enjoy computational physics, iTurbo 3D turns the equations of motion into something you can see and explore directly on iPhone.

About

G4SR 2026

Features
Read full description

Official App for Fifth International Conference on Generation IV and Small Reactors 2026 The app will allow you to sign-in and favorite sessions or presentations allowing you to create your own custom itinerary. Filter the sessions, presentations, or participants to drill down and find the information you are looking for. Update your profile and create virtual badge.Post on the social feed for the conference to engage with your community and presenters.

Screenshots

iTurbo3D4 screens
G4SR 20263 screens

Verdict

The call

The clearest difference is device support: G4SR 2026 at 3 against iTurbo3D's 1. G4SR 2026 also leads on iOS requirement (15.6 vs 18.0). On price, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences ยท 3 level
iTurbo3D versus G4SR 2026: the parameters behind the verdict, then further details
ParameteriTurbo3DG4SR 2026
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS18.015.6 โ€” better
Further details โ€” not scored
Size1 MB61 MB
Age rating4+17+
DeveloperManneTroll SolutionsCanadian Nuclear Society

In-app purchases

None

iTurbo3D

No in-app purchases

None

G4SR 2026

No in-app purchases

Questions

Is iTurbo3D free?
iTurbo3D is free to download, with no in-app purchases.
Is G4SR 2026 free?
G4SR 2026 is free to download, with no in-app purchases.
Do iTurbo3D or G4SR 2026 have ads?
Neither iTurbo3D nor G4SR 2026 shows ads.

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