Comparison

E vs Toolbox TREMEC U.S.

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

Toolbox TREMEC U.S.

This application simplifies driveline setup and predicts performance changes from gear ratios and tire size. It offers tools to calculate vehicle speed and RPM variables, aiding in rig planning and performance expectation.

Highlights
  • Driveline Angle Finder
  • RPM Calculator
  • Tire Size Calculator
  • Vehicle Speed Calculator
  • Performance prediction
Read full description

The TREMEC Toolbox App will help you simplify driveline setup, predict the effects of changing gear ratios and tire size, and calculate vehicle speed and RPM variables. The TREMEC Toolbox App includes: Driveline Angle Finder, RPM Calculator, Tire Size Calculator, and Vehicle Speed Calculator. This Toolbox is great for planning your rig, allowing you to see what kind of performance to expect from different combinations!

Screenshots

E4 screens
Toolbox TREMEC U.S.4 screens

Verdict

The call

The clearest difference is review sentiment: Toolbox TREMEC U.S. at 100% against E's 46%. Toolbox TREMEC U.S. also leads on iOS requirement (13.0 vs 16.0). E's advantage is rating (3.9 vs 3.3) and ratings volume (24 vs 3). 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

E holds the better App Store score, 3.9 against 3.3. That said, the two scores are not equally well evidenced: E has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews complicate that: 46% of E's written reviews are positive against 100% of Toolbox TREMEC U.S.'s, so the app with the better star average is not the one people write more warmly about.

Scorecard4 real differences · 6 level
E versus Toolbox TREMEC U.S.: the parameters behind the verdict, then further details
ParameterEToolbox TREMEC U.S.
PriceFreeFree
Rating3.9 (24 ratings) — better3.3 (3 ratings)
Positive reviews46.2% of reviews100.0% of reviews — better
Number of ratings24 — better3
Update frequencyEvery 4 months—
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size51 MB6 MB
Age rating4+4+
DeveloperEdelbrock CorpGrupo Kuo, S.A.B. de C.V.

Customer experience

E

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

Toolbox TREMEC U.S.

All ratings3 ratings
Positive33.3%
Neutral66.7%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

E

No in-app purchases

None

Toolbox TREMEC U.S.

No in-app purchases

Questions

Is E free?
E is free to download, with no in-app purchases.
Is Toolbox TREMEC U.S. free?
Toolbox TREMEC U.S. is free to download, with no in-app purchases.
Which has better reviews, E or Toolbox TREMEC U.S.?
E is rated higher. E averages 3.9 out of 5 from 24 ratings, while Toolbox TREMEC U.S. averages 3.3 from 3 ratings.
Do E or Toolbox TREMEC U.S. have ads?
Neither E nor Toolbox TREMEC U.S. shows ads.

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