# SDG Rotor vs DINAN PCU

The clearest difference is review sentiment: SDG Rotor at 100% against DINAN PCU's 0%. SDG Rotor also leads on rating (5.0 vs 1.0) and update cadence (every 2 days vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

SDG Rotor holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of SDG Rotor's written reviews are positive against 0% of DINAN PCU's.

SDG Rotor ships an update every 2 days, DINAN PCU every 3 months. The most recent releases landed on October 23, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SDG Rotor | DINAN PCU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sdg-rotor/id6480425498/reviews)** | [1.0 (2 ratings)](https://appshunter.io/ios/app/dinan-pcu/id6503719573/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 months |
| Monetization | Free | Free |
| Size | 46 MB | 141 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | +17 | 4+ |
| Developer | [Stephan Monette](https://appshunter.io/developer/1299469285) | [Holley Performance Products](https://appshunter.io/developer/1175069390) |

## What reviewers say

### 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


### DINAN PCU

[App page](https://appshunter.io/ios/app/dinan-pcu/id6503719573)

This app allows vehicle owners to tune their car's engine for increased horsepower and torque. It offers on-the-fly performance adjustments, throttle sensitivity control, and diagnostic features like reading fault codes.

**Highlights:** Increase horsepower and torque, Plug-and-play engine tuning, On-the-fly performance level changes, Adjust throttle sensitivity, Read emissions readiness, Read and clear fault codes

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

**In-app purchases:** none


## Frequently asked questions

### Is SDG Rotor free?

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

### Is DINAN PCU free?

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

### Which has better reviews, SDG Rotor or DINAN PCU?

SDG Rotor is rated higher. SDG Rotor averages 5.0 out of 5 from 1 ratings, while DINAN PCU averages 1.0 from 2 ratings.

### Do SDG Rotor or DINAN PCU have ads?

Neither SDG Rotor nor DINAN PCU shows ads.

### Which is updated more often, SDG Rotor or DINAN PCU?

SDG Rotor ships an update every 2 days, and DINAN PCU every 3 months. Most recently, SDG Rotor was updated on October 23, 2026 and DINAN PCU on October 30, 2026.

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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.*