# EngToolBox vs Nautlius

EngToolBox and Nautlius are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | EngToolBox | Nautlius |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/nautlius-stem-toolbox/id6736767636/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | — | Free |
| Size | 2 MB | 13 MB |
| Requires iOS | **17.2** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Irfan Uruci](https://appshunter.io/developer/1761565214) | [Troy Husted](https://appshunter.io/developer/1665389547) |

## What reviewers say

### EngToolBox

[App page](https://appshunter.io/ios/app/engtoolbox/id6615082500)

**Features:** macOS Compatibility

**In-app purchases:** none


### Nautlius

[App page](https://appshunter.io/ios/app/nautlius-stem-toolbox/id6736767636)

This app provides a comprehensive suite of tools for STEM education and professional use. It offers engineering calculators, unit conversions, property lookups, and simulation capabilities. Students and professionals can utilize it for quick calculations and data analysis.

**Highlights:** Engineering calculators, Free body diagrams, Property lookup tables, Experiment simulations, Unit conversion

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is EngToolBox free?

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

### Is Nautlius free?

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

### Do EngToolBox or Nautlius have ads?

Neither EngToolBox nor Nautlius shows ads.

---

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