# The Unit Circle App vs Mechanical Engineering Lab

The clearest difference is price: The Unit Circle App at Free against Mechanical Engineering Lab's $2.99. The Unit Circle App also leads on iOS requirement (15.1 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

The Unit Circle App is free to download; Mechanical Engineering Lab costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | The Unit Circle App | Mechanical Engineering Lab |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Monthly |
| Size | 19 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Raymond Shane Jackson](https://appshunter.io/developer/1817087516) | [Yuhsiu Lai](https://appshunter.io/developer/433114647) |

## What reviewers say

### The Unit Circle App

[App page](https://appshunter.io/ios/app/the-unit-circle-app/id6752369385)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mechanical Engineering Lab

[App page](https://appshunter.io/ios/app/mechanical-engineering-lab/id6766063704)

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

**In-app purchases:** none


## Frequently asked questions

### Is The Unit Circle App free?

The Unit Circle App is free to download, with no in-app purchases.

### Is Mechanical Engineering Lab free?

Mechanical Engineering Lab costs $2.99, with no in-app purchases.

### Do The Unit Circle App or Mechanical Engineering Lab have ads?

Neither The Unit Circle App nor Mechanical Engineering Lab 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.*