iTurbo vs Level Set
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iTurbo
This app simulates fluid dynamics by solving Navier-Stokes equations for 2D incompressible turbulence. It uses a direct numerical simulation method with Euler time stepping and Fourier space calculations for efficiency.
- Direct Numerical Simulation (DNS)
- Navier-Stokes equation solver
- 2D incompressible turbulence
- Euler time stepping
- Fourier space calculations
- Vorticity field transformation
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This application performs a Direct Numerical Simulation (DNS) where the Navier-Stokes equations are solved for two dimensional incompressible homogeneous turbulence. These equations are a set of nonlinear partial differential equations. The time stepping is performed with a simple Euler method where the time step is calculated so that the CFL number does not exceeds the given number (should be less than 0.8 otherwise the simulation blows up). The equations are solved in the Fourier space where the calculation of the nonlinear term transforms to a simple multiplication. The main CPU usage is consumed by transforming the vorticity field back and fourth between the Normal space where the time-stepping is performed and the Fourier space where the nonlinear term is calculated.
Level Set
Create and visualize complex flame dynamics simulations on your mobile device. Explore various simulation parameters, render animations, and analyze flame behavior with detailed charts. Share your creations easily via email or social media.
- Flame dynamics simulations
- Customizable simulation parameters
- Animation visualization
- Surface area charts
- Shareable snapshots and data
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Level Set allows you to perform computer simulations of flame dynamics on your iPhone or iPad. You can chose from a variety of simulation parameters, including flow complexity and strength, grid size and the method for surface rendering. You can visualize animations of the flame motion as well as charts of surface area versus time. You can also share flame surface snapshots and chart data via email, Air Drop and social media.
Screenshots
Verdict
The clearest difference is update cadence: Level Set at every 4 months against iTurbo's every 54 months. Level Set also leads on iOS requirement (12.0 vs 18.0). On price, rating, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for iTurbo against 5.0 for Level Set. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
iTurbo ships an update every 54 months, Level Set every 4 months. The most recent releases landed on September 29, 2026 and October 2, 2026 respectively.
| Parameter | iTurbo | Level Set |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 54 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 506 MB |
| Age rating | 4+ | 4+ |
| Developer | ManneTroll Solutions | Ralph Aldredge |
Customer experience
iTurbo
Level Set
In-app purchases
iTurbo
No in-app purchases
Level Set
No in-app purchases
