E vs Aces Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
This app connects wirelessly to an EFI system, allowing users to monitor engine data and adjust various settings like air-fuel ratios and ignition timing. It offers a setup wizard for initial calibration and advanced tuning options for performance optimization.
- Bluetooth ECU communication
- Live tuning of ECU settings
- Real-time engine and sensor data monitoring
- Setup Wizard for base calibration
- Advanced tuning functions
- Diagnostic troubleshooting page
- Vivid gauge displays
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E-Tuner 4 is Edelbrock's latest exclusive iOS app for the Pro-Flo 4 and EZ Street EFI Systems. E-Tuner 4 communicates with your PF4 or EZ Street ECU via Bluetooth, so you can manage and live-tune a variety of ECU settings such as air-fuel ratios, ignition timing, idle speed, acceleration fuel, or cold start mixture as well as monitor engine and sensor data in real-time wirelessly from your iPhone or iPad. The E Tuner 4 Setup Wizard simplifies your Pro Flo 4 or EZ Street EFI setup by assisting you with selecting the proper base calibration for your specific application. All you need to know is the engine displacement (CID) and camshaft, and kit specifications, and you're good to go! E-Tuner 4 applies a solid base calibration so you can run the vehicle without having to change any tuning settings. But, if you'd like to make changes, E-Tuner 4 offers a selection of "Advanced Tuning" functions to help dial in your calibration and get the vehicle’s performance exactly where you want it. Whether you'd like to run a bit leaner while cruising for improved mileage, or advance timing for more performance, the Advanced Tuning section is there for you. A diagnostic page for troubleshooting purposes is also available. Once you're up and running, feel free to explore E-Tuner 4’s vivid gauge displays to monitor your engine's performance. Unlike other tuning hand-held combos, you can actually use your phone or tablet as a mini-dashboard once you're done tuning. You can also preview E-Tuner 4 without being connected to an Edelbrock EFI System by enabling "Demo Mode." This will allow you to access the app's main features, and interact with pages like the Setup Wizard, Advanced Tuning, and Gauge Displays to get a feel for how E-Tuner 4 functions. *** Warning! *** E-Tuner 4 is only compatible with the Edelbrock Pro-Flo 4 and EZ Street EFI Systems. It is NOT compatible with V1 E-Street, V2 E-Street, or Pro-Flo 3 EFI systems nor does it work with other Edelbrock Legacy EFI Systems. The E-Tuner 4 app supports all iPhones and iPads running iOS 16 and higher at this time. Please check back later for updates
Aces Connect
Wirelessly control your engine's EFI system with real-time data monitoring and instant adjustments. Tune your engine on the fly and review detailed performance logs through an intuitive interface.
- Wireless Bluetooth connection
- Real-time engine data monitoring
- Instant tuning adjustments
- Performance data logging
- Customizable dashboards
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The Aces Connect App gives you complete wireless control over your Aces EFI system through the Aces Bluetooth module. Whether you’re fine-tuning at the track, monitoring live engine data, or reviewing detailed logs, the app provides everything you need in a sleek, easy-to-use interface. Key Features: Wireless Connection: Pair your ACES EFI system with your iOS device via Bluetooth — no wired connection required. Real-Time Monitoring: View live engine parameters with customizable dashboards. Instant Adjustments: Make tuning changes on the fly for peak performance. Data Logging: Record, save, and review logs for performance analysis. Whether you’re a performance enthusiast or professional tuner, the ACES Mobile Tuning App puts ultimate EFI control right in your hands.
Screenshots
Verdict
The clearest difference is review sentiment: Aces Connect at 100% against E's 46%. Aces Connect also leads on rating (5.0 vs 3.9) and update cadence (every 2 months vs every 4 months). E's advantage is ratings volume (24 vs 4). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Aces Connect holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: E has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 46% of E's written reviews are positive against 100% of Aces Connect's.
E ships an update every 4 months, Aces Connect every 2 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.
| Parameter | E | Aces Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (24 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 46.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 24 — better | 4 |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 51 MB | 45 MB |
| Age rating | 4+ | 17+ |
| Developer | Edelbrock Corp | ACES FUEL INJECTION INC |
Customer experience
E
Aces Connect
In-app purchases
E
No in-app purchases
Aces Connect
No in-app purchases







