# Nautlius vs EarthPhase

The clearest difference is in-app purchases: Nautlius at none against EarthPhase's 2. On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. EarthPhase sells 2 one-off in-app purchases. Nautlius asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Nautlius against 5.0 for EarthPhase. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Nautlius | EarthPhase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/nautlius-stem-toolbox/id6736767636/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/earthphase/id6759940394/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Monetization | Free | Free |
| Size | 13 MB | 40 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Troy Husted](https://appshunter.io/developer/1665389547) | [Nathan Coleman](https://appshunter.io/developer/1881786388) |

## What reviewers say

### 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


### EarthPhase

[App page](https://appshunter.io/ios/app/earthphase/id6759940394)

Explore a beautifully designed, interactive solar system with real-time celestial data. Track moon and Earth phases, view planet positions, and travel through time to discover cosmic events and facts.

**Highlights:** Interactive solar system map, Real-time moon and Earth phases, Home and lock screen widgets, Time travel slider for past/future events, Discover cosmic facts and mechanics, Accurate planet positions and orbits

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip | $0.99 | one-time |
| Tip | $4.99 | one-time |


## Frequently asked questions

### Is Nautlius free?

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

### Is EarthPhase free?

EarthPhase is free to download, with in-app purchases available.

### Which has better reviews, Nautlius or EarthPhase?

Nautlius and EarthPhase are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Nautlius or EarthPhase have ads?

Neither Nautlius nor EarthPhase 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.*