# Engineering HandBook vs ONELAB

The clearest difference is rating: ONELAB at 5.0 against Engineering HandBook's 4.0. Engineering HandBook's advantage is update cadence (every 2 weeks vs every 2 months) and ratings volume (4 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ONELAB holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Engineering HandBook ships an update every 2 weeks, ONELAB every 2 months. Both last shipped on June 8, 2026.

## The numbers

| Metric | Engineering HandBook | ONELAB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/engineering-handbook/id843746804/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/onelab/id845930897/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 12 MB | 95 MB |
| Requires iOS | **6.0** | 9.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Raghu Srinivas](https://appshunter.io/developer/843746807) | [Christophe Geuzaine](https://appshunter.io/developer/845930900) |

## What reviewers say

### Engineering HandBook

[App page](https://appshunter.io/ios/app/engineering-handbook/id843746804)

Access essential engineering formulas and concepts on the go. This app covers materials, numbers, mechanics, components, and metal cutting operations, providing accurate calculations for various engineering tasks.

**Highlights:** Engineering formulas and calculations, Materials classification and properties, Basic and trigonometric calculations, Unit conversions, Gear drive formulas, Metal cutting operation calculations

**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 Engineering HandBook free?

Engineering HandBook 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, Engineering HandBook or ONELAB?

ONELAB is rated higher. Engineering HandBook averages 4.0 out of 5 from 4 ratings, while ONELAB averages 5.0 from 1 ratings.

### Do Engineering HandBook or ONELAB have ads?

Neither Engineering HandBook nor ONELAB shows ads.

### Which is updated more often, Engineering HandBook or ONELAB?

Engineering HandBook ships an update every 2 weeks, and ONELAB every 2 months. Most recently, Engineering HandBook was updated on June 8, 2026 and ONELAB on June 8, 2026.

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