Comparison

E vs PowerProbe Link

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

PowerProbe Link

This utility app connects to specific PowerProbe devices, enabling wireless data logging and remote monitoring. Users can download log data and export it to CSV files for analysis and reporting.

Highlights
  • Wireless data logging
  • Remote measurement monitoring
  • Log data download
  • CSV data export
  • Supports PowerProbe IT500
  • Supports DRAW MONITOR
Features
Read full description

PowerProbe Link App provides PowerProbe products with the wireless features. For PowerProbe IT500, PowerProbe Link provides log data download feature from PowerProbe IT500, and can export the data to CSV file for further analysis and report. For DRAW MONITOR, PowerProbe Link provides remote measurement monitering and recording.

Screenshots

E4 screens
PowerProbe Link4 screens

Verdict

The call

The clearest difference is review sentiment: E at 45% against PowerProbe Link's 0%. E also leads on rating (4.0 vs 3.5) and ratings volume (22 vs 4). PowerProbe Link's advantage is iOS requirement (13.0 vs 16.0). 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

E holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: E has 22 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 45% of E's written reviews are positive against 0% of PowerProbe Link's.

UpkeepUpdate frequency

E ships an update every 8 months, PowerProbe Link every 13 months. The most recent releases landed on August 29, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
E versus PowerProbe Link: the parameters behind the verdict, then further details
ParameterEPowerProbe Link
PriceFreeFree
Rating4.0 (22 ratings) — better3.5 (4 ratings)
Positive reviews45.5% of reviews — better0.0% of reviews
Number of ratings22 — better4
Update frequencyEvery 8 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS16.013.0 — better
Further details — not scored
Size50 MB4 MB
Age rating4+4+
DeveloperEdelbrock CorpMGL APPA CORPORATION

Customer experience

E

All ratings17 ratings
Positive70.6%
Neutral23.5%
Negative5.9%
Written reviews11 reviews
Positive45.5%
Neutral36.4%
Negative18.2%

PowerProbe Link

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

E

No in-app purchases

None

PowerProbe Link

No in-app purchases

Questions

Is E free?
E is free to download, with no in-app purchases.
Is PowerProbe Link free?
PowerProbe Link is free to download, with no in-app purchases.
Which has better reviews, E or PowerProbe Link?
E is rated higher. E averages 4.0 out of 5 from 22 ratings, while PowerProbe Link averages 3.5 from 4 ratings.
Do E or PowerProbe Link have ads?
Neither E nor PowerProbe Link shows ads.
Which is updated more often, E or PowerProbe Link?
E ships an update every 8 months, and PowerProbe Link every 13 months. Most recently, E was updated on August 29, 2026 and PowerProbe Link on September 20, 2026.

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