iTurbo vs The Matrix Mentor
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.
The Matrix Mentor
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Are matrices getting you down? Don’t worry… THE MATRIX MENTOR IS HERE TO HELP The Matrix Mentor provides a visual understanding of linear transformations. Where others may teach you the mathematical rules that can be hard to remember, our playground provides a visual and interactive demonstration of the inner workings. SCARED OF MATRICES? DON'T BE! At its core, The Matrix Mentor is a visual learning tool, designed to bring matrices from an abstract mathematical concept to a concrete application. Whether you think about vectors as 3D points or a RGB color value, the fundamentals hold true. - Experiment with different types of transformations - Discover how matrices interact with a given vector, or a whole grid of points - Develop your intuitive sense for reading matrices and linear transformations Do yourself a favour, and start playing with The Matrix Mentor today!
Screenshots
Verdict
The clearest difference is update cadence: The Matrix Mentor at every 4 days against iTurbo's every 54 months. On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iTurbo ships an update every 54 months, The Matrix Mentor every 4 days. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.
| Parameter | iTurbo | The Matrix Mentor |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 54 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | ManneTroll Solutions | Edwin Veger |
In-app purchases
iTurbo
No in-app purchases
The Matrix Mentor
No in-app purchases









