# UnitEngConverter vs Nautlius

The clearest difference is iOS requirement: UnitEngConverter at 16.6 against Nautlius's 18.0. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | UnitEngConverter | 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 |
| Update frequency | Daily | — |
| Monetization | — | Free |
| Size | 2 MB | 13 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Irfan Uruci](https://appshunter.io/developer/1761565214) | [Troy Husted](https://appshunter.io/developer/1665389547) |

## What reviewers say

### UnitEngConverter

[App page](https://appshunter.io/ios/app/unitengconverter/id6651829579)

**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 UnitEngConverter free?

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

### Is Nautlius free?

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

### Do UnitEngConverter or Nautlius have ads?

Neither UnitEngConverter nor Nautlius shows ads.

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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.*