# Mechanical Formula vs Relativity Simulator

The clearest difference is in-app purchases: Relativity Simulator at none against Mechanical Formula's 1. Mechanical Formula's advantage is iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Mechanical Formula sells 1 one-off in-app purchase. Relativity Simulator asks for nothing beyond the download.

## The numbers

| Metric | Mechanical Formula | Relativity Simulator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (34 ratings)](https://appshunter.io/ios/app/mechanical-formula/id1668948373/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 42 MB | 15 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) | [际 郭](https://appshunter.io/developer/6797282134) |

## What reviewers say

### Mechanical Formula

[App page](https://appshunter.io/ios/app/mechanical-formula/id1668948373)

This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.

**Highlights:** 200+ mechanical engineering formulas, Instant calculations, Intuitive interface, Real-world application explanations, Exam preparation aid, Lifetime Premium option

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


### Relativity Simulator

[App page](https://appshunter.io/ios/app/relativity-simulator/id6811289729)

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

**In-app purchases:** none


## Frequently asked questions

### Is Mechanical Formula free?

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

### Is Relativity Simulator free?

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

### Do Mechanical Formula or Relativity Simulator have ads?

Neither Mechanical Formula nor Relativity Simulator 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.*