# Mechanic App vs SDG Rotor

The clearest difference is update cadence: SDG Rotor at every 2 days against Mechanic App's monthly. 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.

Mechanic App ships an update monthly, SDG Rotor every 2 days. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Mechanic App | SDG Rotor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sdg-rotor/id6480425498/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Monetization | — | Free |
| Size | 25 MB | 46 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | +17 |
| Developer | [ASD Solutions Pty Ltd](https://appshunter.io/developer/964490339) | [Stephan Monette](https://appshunter.io/developer/1299469285) |

## What reviewers say

### Mechanic App

[App page](https://appshunter.io/ios/app/mechanic-app/id1491922735)

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

**In-app purchases:** none


### SDG Rotor

[App page](https://appshunter.io/ios/app/sdg-rotor/id6480425498)

This tool helps high-performance vehicle owners ensure the safety of their supercharger rotor RPM. It allows users to input supercharger details and engine RPM for instant safety checks, leveraging expert knowledge in performance vehicles.

**Highlights:** Supercharger rotor RPM safety checks, Input supercharger details and engine RPM, Instant safety assessments, Expertise in high-performance vehicles, User-friendly design, Supports global units and standards

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

**In-app purchases:** none


## Frequently asked questions

### Is Mechanic App free?

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

### Is SDG Rotor free?

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

### Do Mechanic App or SDG Rotor have ads?

Neither Mechanic App nor SDG Rotor shows ads.

### Which is updated more often, Mechanic App or SDG Rotor?

Mechanic App ships an update monthly, and SDG Rotor every 2 days. Most recently, Mechanic App was updated on October 20, 2026 and SDG Rotor on October 14, 2026.

---

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