# iTurbo vs ONELAB

The clearest difference is update cadence: ONELAB at every 2 months against iTurbo's every 54 months. ONELAB also leads on iOS requirement (9.0 vs 18.0). On price, rating, ratings volume and ads there is nothing between them.

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 ONELAB. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

iTurbo ships an update every 54 months, ONELAB every 2 months. The most recent releases landed on September 29, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | iTurbo | ONELAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/iturbo/id314368331/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/onelab/id845930897/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 2 MB | 95 MB |
| Requires iOS | 18.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ManneTroll Solutions](https://appshunter.io/developer/313743954) | [Christophe Geuzaine](https://appshunter.io/developer/845930900) |

## What reviewers say

### iTurbo

[App page](https://appshunter.io/ios/app/iturbo/id314368331)

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.

**Highlights:** Direct Numerical Simulation (DNS), Navier-Stokes equation solver, 2D incompressible turbulence, Euler time stepping, Fourier space calculations, Vorticity field transformation

**Features:** macOS Compatibility

**In-app purchases:** none


### ONELAB

[App page](https://appshunter.io/ios/app/onelab/id845930897)

This application provides a finite element package for simulating multi-physics problems. It integrates with open-source tools for mesh generation and solving, offering ready-to-use examples for electromagnetics, thermics, and mechanics.

**Highlights:** Finite element package, Multi-physic problem simulation, Electromagnetics, thermics, mechanics, Integrates with Gmsh and GetDP, Ready-to-use examples, Add new models via zip archives

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iTurbo free?

iTurbo is free to download, with no in-app purchases.

### Is ONELAB free?

ONELAB is free to download, with no in-app purchases.

### Which has better reviews, iTurbo or ONELAB?

iTurbo and ONELAB are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do iTurbo or ONELAB have ads?

Neither iTurbo nor ONELAB shows ads.

### Which is updated more often, iTurbo or ONELAB?

iTurbo ships an update every 54 months, and ONELAB every 2 months. Most recently, iTurbo was updated on September 29, 2026 and ONELAB on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*