# ECU Connect vs Syvecs Pro

ECU Connect and Syvecs Pro both sit at 4.0 stars, but that hides the real split: 100% of Syvecs Pro's written reviews are positive against 62% of ECU Connect's. Syvecs Pro also leads on iOS requirement (13.0 vs 15.0). ECU Connect's advantage is in-app purchases (none vs 8) and ratings volume (88 vs 3). On price, rating, ads and monetization model there is nothing between them.

Both are free to download. Syvecs Pro sells 8 one-off in-app purchases. ECU Connect asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for ECU Connect against 4.0 for Syvecs Pro. That said, the two scores are not equally well evidenced: ECU Connect has 88 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 62% of ECU Connect's written reviews are positive against 100% of Syvecs Pro's.

ECU Connect ships an update every 3 weeks, Syvecs Pro every 5 weeks. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ECU Connect | Syvecs Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (88 ratings)](https://appshunter.io/ios/app/ecu-connect/id1140860609/reviews) | [4.0 (3 ratings)](https://appshunter.io/ios/app/syvecs-pro/id1231388718/reviews) |
| Number of ratings | **88** | 3 |
| Positive reviews | 62.1% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | Free |
| Size | 83 MB | 51 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EcuTek Technologies Ltd](https://appshunter.io/developer/1140860608) | [TWISTED SOLUTIONS LIMITED](https://appshunter.io/developer/1139210891) |

## 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


### Syvecs Pro

[App page](https://appshunter.io/ios/app/syvecs-pro/id1231388718)

This app connects to a Bluetooth module to provide customizable dashboards, performance tracking with GPS, and a warning system for vehicle diagnostics. It simplifies setup and allows for data logging and sharing.

**Highlights:** Customizable dashboards, Data logging and export, Performance tracking (0-60, 1/4 mile), ECU warning system, Simplified setup wizard, Stream checker for module setup

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Syvecs Pro Ultimate - Free | Free | one-time |
| ULTIMATE UPGRADE | $25.99 | one-time |
| Syvecs Pro Ultimate - 10% Off | $25.99 | one-time |
| Syvecs Pro Ultimate - 15% Off | $25.99 | one-time |
| Syvecs Pro Ultimate - 20% Off | $25.99 | one-time |
| Syvecs Pro Ultimate - 25% Off | $25.99 | one-time |
| Syvecs Pro Ultimate - 50% Off | $25.99 | one-time |
| Syvecs Pro Ultimate - 75% Off | $25.99 | one-time |


## Frequently asked questions

### Is ECU Connect free?

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

### Is Syvecs Pro free?

Syvecs Pro is free to download, with in-app purchases available.

### Which has better reviews, ECU Connect or Syvecs Pro?

ECU Connect and Syvecs Pro are both rated 4.0 out of 5 on the App Store, from 88 and 3 ratings respectively.

### Do ECU Connect or Syvecs Pro have ads?

Neither ECU Connect nor Syvecs Pro shows ads.

### Which is updated more often, ECU Connect or Syvecs Pro?

ECU Connect ships an update every 3 weeks, and Syvecs Pro every 5 weeks. Most recently, ECU Connect was updated on October 21, 2026 and Syvecs Pro on October 24, 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.*