Comparison

E vs Edge EZ

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Edge EZ

This application allows users to control their inline module directly from their smartphone. Adjust power levels and throttle boost settings to customize your driving experience. Upgrade your vehicle and unlock its full engine potential.

Highlights
  • Control inline module
  • Adjust power levels
  • Modify throttle boost
  • Customize driving experience
  • Unlock engine potential
Features
Read full description

Use the Edge EZ app to control your inline module on the fly! Using the smartphone app in conjunction with the Edge EZ plug and play module, change between five power levels and throttle boost settings giving you control over your driving experience. Upgrade your truck with Edge EZ and unleash the full potential of your engine. Product features may vary by vehicle application, please visit the product page on our website for full product details.

Screenshots

E4 screens
Edge EZ4 screens

Verdict

The call

The clearest difference is review sentiment: E at 46% against Edge EZ's 0%. E also leads on ratings volume (24 vs 4). Edge EZ's advantage is rating (4.8 vs 3.9). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Edge EZ holds the better App Store score, 4.8 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 complicate that: 46% of E's written reviews are positive against 0% of Edge EZ's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard3 real differences · 7 level
E versus Edge EZ: the parameters behind the verdict, then further details
ParameterEEdge EZ
PriceFreeFree
Rating3.9 (24 ratings)4.8 (4 ratings) — better
Positive reviews46.2% of reviews — better0.0% of reviews
Number of ratings24 — better4
Update frequencyEvery 4 monthsEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.0 — better
Further details — not scored
Size51 MB128 MB
Age rating4+4+
DeveloperEdelbrock CorpHolley Performance Products

Customer experience

E

All ratings24 ratings
Positive66.7%
Neutral20.8%
Negative12.5%
Written reviews13 reviews
Positive46.2%
Neutral30.8%
Negative23.1%

Edge EZ

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

E

No in-app purchases

None

Edge EZ

No in-app purchases

Questions

Is E free?
E is free to download, with no in-app purchases.
Is Edge EZ free?
Edge EZ is free to download, with no in-app purchases.
Which has better reviews, E or Edge EZ?
Edge EZ is rated higher. E averages 3.9 out of 5 from 24 ratings, while Edge EZ averages 4.8 from 4 ratings.
Do E or Edge EZ have ads?
Neither E nor Edge EZ shows ads.
Which is updated more often, E or Edge EZ?
E ships an update every 4 months, and Edge EZ every 4 months. Most recently, E was updated on November 3, 2026 and Edge EZ on November 4, 2026.

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