# ECU Connect vs Car Starry Sky

The clearest difference is rating: ECU Connect at 4.0 against Car Starry Sky's 1.0. ECU Connect also leads on ratings volume (88 vs 1) and update cadence (every 3 weeks vs every 2 months). Car Starry Sky's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

ECU Connect holds the better App Store score, 4.0 against 1.0. That said, the two scores are not equally well evidenced: ECU Connect has 88 ratings behind it against 1, so its average is the more settled of the two.

ECU Connect ships an update every 3 weeks, Car Starry Sky every 2 months. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ECU Connect | Car Starry Sky |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (88 ratings)](https://appshunter.io/ios/app/ecu-connect/id1140860609/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/car-starry-sky/id6738410498/reviews) |
| Number of ratings | **88** | 1 |
| Positive reviews | 62.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 83 MB | 34 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EcuTek Technologies Ltd](https://appshunter.io/developer/1140860608) | [旭东 陈](https://appshunter.io/developer/1650390655) |

## What reviewers say

### ECU Connect

[App page](https://appshunter.io/ios/app/ecu-connect/id1140860609)

This app allows you to program tuned files directly to your car's ECU using your phone. It also provides real-time engine performance monitoring and customizable dashboards. A Bluetooth interface is required for full functionality.

**Highlights:** Program tuned ECU files wirelessly, Real-time engine performance monitoring, Customizable parameter dashboards, Log engine data with GPS coordinates, Adjust RaceROM features on the fly, Connects via Bluetooth Vehicle Interface

**In-app purchases:** none

**What reviewers like**

- 👍 Great app for tuning
- 💪 Allows map switching
- 📱 Customizable dashboard
- 🚀 Fast performance
- 🔧 Works with hardware

**What reviewers complain about**

- ⚠️ Throttle sensitivity restriction
- 😵 Finicky flashing process
- 🚫 No transmission logging
- 📱 Requires phone for display
- 🐛 Boost gauge not working

**Reported bugs**

- App kicks you out when changing background
- Refusals to flash citing nonexistent problems
- Super finicky about battery voltage
- Zero transmission logging
- Latest firmware update no longer allowing app to read car interface on iOS

**Requested features**

- CarPlay support
- Android Auto support
- CarPlay widget
- Widget for iOS home screen
- Landscape dashboard view


### Car Starry Sky

[App page](https://appshunter.io/ios/app/car-starry-sky/id6738410498)

This application allows users to control the ambient lighting in their car, specifically designed to create a starry sky effect. It offers customization options to enhance the interior atmosphere of your vehicle.

**Highlights:** Control car starry sky lighting, Customize interior atmosphere, Ambient lighting enhancement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECU Connect free?

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

### Is Car Starry Sky free?

Car Starry Sky is free to download, with no in-app purchases.

### Which has better reviews, ECU Connect or Car Starry Sky?

ECU Connect is rated higher. ECU Connect averages 4.0 out of 5 from 88 ratings, while Car Starry Sky averages 1.0 from 1 ratings.

### Do ECU Connect or Car Starry Sky have ads?

Neither ECU Connect nor Car Starry Sky shows ads.

### Which is updated more often, ECU Connect or Car Starry Sky?

ECU Connect ships an update every 3 weeks, and Car Starry Sky every 2 months. Most recently, ECU Connect was updated on November 2, 2026 and Car Starry Sky on November 4, 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.*