Comparison

Amp’d 2.0 vs E

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

Head to head
About

Amp’d 2.0

Instantly adjust your vehicle's throttle response wirelessly. This advanced device and app combination eliminates delays, giving you full control over how your car drives. Customize or select from pre-set throttle curves for an enhanced driving experience.

Highlights
  • Wireless Bluetooth control
  • Eliminates throttle response delays
  • 5 preset throttle curves
  • Thousands of custom curve possibilities
  • Intuitive guides and tutorials
  • Bluetooth pairing
Features
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Take your throttle sensitivity adjustment wireless! The Amp’d 2.0 throttle sensitivity booster is the most advanced throttle modification device on the market today. Amp’d removes the throttle response delays, instantly putting you in total control of your vehicle’s throttle response. The wireless Bluetooth switch is an industry exclusive feature and the Amp’d 2.0 app provides unparalleled control over your throttle experience. Amp’d 2.0 is pre-loaded with 5 preset throttle curves and thousands of custom curve possibilities. Newer vehicles on the market reduce throttle response, and we feel that you paid for a powerful vehicle, so you should have full control over how it drives! This Bluetooth App provides full control over the Amp’d 2.0 Throttle Sensitivity Booster. You will have the ability to instantly select from 5 preset throttle curves or customize your own throttle curve and save it into the device so you can alternate from custom curves and preset curves in seconds. The Amp’d app will find your Amp’d 2.0 module via Bluetooth and pairs in no time. Our intuitive guides and tutorials will help you fully understand how to use the app to improve your driving experience

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
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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

Amp’d 2.03 screens
E4 screens

Verdict

The call

The clearest difference is rating: Amp’d 2.0 at 5.0 against E's 3.9. Amp’d 2.0 also leads on iOS requirement (12.2 vs 16.0). E's advantage is update cadence (every 5 months vs every 12 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

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

Amp’d 2.0 holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 5 and 24 respectively.

UpkeepUpdate frequency

Amp’d 2.0 ships an update every 12 months, E every 5 months. The most recent releases landed on September 23, 2026 and September 29, 2026 respectively.

Scorecard4 real differences · 6 level
Amp’d 2.0 versus E: the parameters behind the verdict, then further details
ParameterAmp’d 2.0E
PriceFreeFree
Rating5.0 (5 ratings) — better3.9 (24 ratings)
Positive reviews—46.2% of reviews
Number of ratings524 — better
Update frequencyEvery 12 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.2 — better16.0
Further details — not scored
Size82 MB51 MB
Age rating4+4+
DeveloperHolley Performance ProductsEdelbrock Corp

Customer experience

Amp’d 2.0

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

E

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

In-app purchases

None

Amp’d 2.0

No in-app purchases

None

E

No in-app purchases

Questions

Is Amp’d 2.0 free?
Amp’d 2.0 is free to download, with no in-app purchases.
Is E free?
E is free to download, with no in-app purchases.
Which has better reviews, Amp’d 2.0 or E?
Amp’d 2.0 is rated higher. Amp’d 2.0 averages 5.0 out of 5 from 5 ratings, while E averages 3.9 from 24 ratings.
Do Amp’d 2.0 or E have ads?
Neither Amp’d 2.0 nor E shows ads.
Which is updated more often, Amp’d 2.0 or E?
Amp’d 2.0 ships an update every 12 months, and E every 5 months. Most recently, Amp’d 2.0 was updated on September 23, 2026 and E on September 29, 2026.

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