Bowler All vs E
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bowler All
Configure and diagnose a specific vehicle harness wirelessly. Calibrate the speedometer in real-time with an assistant to maintain consistent speeds during adjustments.
- Wireless harness setup
- Harness diagnostics
- Live speedometer calibration
- Vehicle speed adjustment assistant
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Allows setup and diagnostics of the Bowler All-In-One harness via wireless link. The speedometer can also be calibrated live, with an assistant to drive the vehicle at a constant speed or make the adjustments.
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
Screenshots
Verdict
The clearest difference is rating: E at 3.9 against Bowler All's 3.4. E also leads on update cadence (every 4 months vs every 13 months) and ratings volume (24 vs 5). 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.
E holds the better App Store score, 3.9 against 3.4. Both are backed by a comparable volume of ratings — 5 and 24 respectively.
Bowler All ships an update every 13 months, E every 4 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Bowler All | E |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 3.9 (24 ratings) — better |
| Positive reviews | — | 46.2% of reviews |
| Number of ratings | 5 | 24 — better |
| Update frequency | Every 13 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 21 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Bowler Performance Transmissions | Edelbrock Corp |
Customer experience
Bowler All
E
In-app purchases
Bowler All
No in-app purchases
E
No in-app purchases
Questions
Is Bowler All free?
Is E free?
Which has better reviews, Bowler All or E?
Do Bowler All or E have ads?
Which is updated more often, Bowler All or E?
Other comparisons
