Comparison

PowerVision 4 vs TuningBase

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

Head to head
About

PowerVision 4

Control your motorcycle's engine performance directly from your iPhone. Access hundreds of pre-loaded engine tunes or create custom ones. Easily flash tunes to your bike's ECU, monitor real-time engine data, and manage diagnostic trouble codes.

Highlights
  • Flash tunes to ECU
  • Access vast tune database
  • Record real-time engine data
  • Read/clear diagnostic codes
  • Remote tuning optimization
  • Autotune modes
  • Active tests for diagnostics
Features
Read full description

Power Vision 4 from Dynojet Research Inc. combined with your iPhone puts you in control of your bike’s engine. Gain access to hundreds of different tunes for various aftermarket components and easily flash any of them to you bike’s ECU. Unbelievably quick and easy to use; make more power and torque with the push of a button. Advanced users can edit hundreds of individual engine parameters to build a tune that’s dialed in for their unique setup using Dynojet’s integrated cloud tune delivery system. With the PV4 App and our pocket-sized PV4 device you can: • Flash tunes to your ECU – no setup required, just create an account, select your tune, flash, and ride the ultimate ride. • Access to vast database of pre-loaded tunes for different configurations – no custom tuning required. • Easily download and manage pre-loaded and custom tunes. • Record real-time engine data and review in WinPEP 8 Data Center. • Read, review, clear, and share diagnostic trouble codes (DTC’s) with built-in descriptions. • Flash an unlimited number of bikes with one device.* • Use licenses from your Power Vision Classic with your Power Vision 4. • Return to stock at any time – your original, factory tune is safely backed up on the cloud and on your phone. • Optimized for remote-tuning. – Easily ride, record, and share data logs with your tuner for trouble-free custom tuning without a dynamometer. • Keep your ECU – The Power Vision 4 reprograms your bike without having to remove or mail-in the ECU. Just plug into the diagnostic connector and flash, it’s really that easy. • Autotune - Choose from three different Autotune modes to dial your HD motorcycle in the way that fits you best. • Dynamometer Compatible - Plug your PV4 directly into your Dynojet Dynamometer to view channels, flash, read diagnostic information, read RPM via OBD, and load control without an inductive pickup. • Flashes on HD motorcycles as fast as 12.75 seconds (select models) • Active Tests help diagnose problems on your HD - cycle the fuel pump, indicators, water pump, and many other components when troubleshooting engine or electrical issues. • Diagnostic Routines allow you to bleed the ABS system at home World class, US-based customer service from our team of motorcycle enthusiasts is also available to suggest the best tune, review data recordings, or assist in troubleshooting. Your ultimate ride awaits with Power Vision 4 – download the app and see how easy tuning can be! * First bike license included with purchase of Power Vision 4 device. Requires purchase of license for each additional bike DISCLAIMER: Not legal for sale or use in California

About

TuningBase

Access a comprehensive mobile database for automotive professionals and tuners. Quickly find ECUs for any vehicle, view performance data, and look up error codes. Supports multiple languages and includes a performance calculator.

Highlights
  • ECU Search by vehicle details
  • Original and tuning performance data
  • Bosch Part Number Search
  • DTC Error Code lookup
  • HP to kW conversion calculator
  • Multilingual support
Features
Read full description

ECUBase – Your Pro Tool for ECUs & Tuning Data Find the right ECU for any vehicle in seconds. ECUBase is the most comprehensive mobile database for automotive professionals, tuners, and workshops. What ECUBase offers: - ECU Search – Browse thousands of vehicles for engine and transmission ECUs. Select manufacturer, model, year, and engine – done. - Performance Data – View original and tuning values for HP and torque at a glance. - Bosch Part Number Search – Find ECU information directly using the manufacturer part number. - DTC Error Codes – Quick access to P-codes and their meanings. - Performance Calculator – Convert HP to kW and vice versa instantly. - 8 Languages – German, English, Russian, Ukrainian, Turkish, Lithuanian, Georgian, and Romanian.

Screenshots

PowerVision 44 screens
TuningBase4 screens

Verdict

The call

The clearest difference is in-app purchases: TuningBase at none against PowerVision 4's 8. TuningBase also leads on update cadence (every 2 weeks vs monthly). PowerVision 4's advantage is ratings volume (312 vs 1). On price, rating, ads and device support 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. PowerVision 4 sells 8 one-off in-app purchases. TuningBase asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for PowerVision 4 against 5.0 for TuningBase. That said, the two scores are not equally well evidenced: PowerVision 4 has 312 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

PowerVision 4 ships an update monthly, TuningBase every 2 weeks. The most recent releases landed on October 19, 2026 and October 16, 2026 respectively.

Scorecard4 real differences · 6 level
PowerVision 4 versus TuningBase: the parameters behind the verdict, then further details
ParameterPowerVision 4TuningBase
PriceFreeFree
Rating4.9 (312 ratings)5.0 (1 ratings) — better
Positive reviews77.9% of reviews—
Number of ratings312 — better1
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size104 MB34 MB
Age rating4+17+
DeveloperDynojetNiko Holm

Customer experience

PowerVision 4

All ratings312 ratings
Positive98.1%
Neutral1.0%
Negative1.0%
Written reviews163 reviews
Positive77.9%
Neutral8.0%
Negative14.1%

TuningBase

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

PowerVision 4

Reported bugs

4 issues
  • App crashes when using diagnostic functions
  • Bluetooth disconnects during tuning process
  • Sensor readings not updating correctly
  • Tune flashing fails intermittently

Requested features

5 requests
  • Add more pre-loaded tune options
  • Implement an auto-tune feature
  • Improve data logging and cloud integration
  • Expand support for wider range of bikes
  • Enhance live sensor data display

TuningBase

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

PowerVision 4

One-time8
  • Universal Token$10.00
  • Universal Token (3x)$30.00
  • Universal Token (5x)$50.00
Show 5 more
  • Universal Token (10x)$100.00
  • Universal Token (15x)$150.00
  • Universal Token (20x)$200.00
  • Universal Token (25x)$250.00
  • Universal Token (30x)$300.00
None

TuningBase

No in-app purchases

Questions

Is PowerVision 4 free?
PowerVision 4 is free to download, with in-app purchases available.
Is TuningBase free?
TuningBase is free to download, with no in-app purchases.
Which has better reviews, PowerVision 4 or TuningBase?
TuningBase is rated higher. PowerVision 4 averages 4.9 out of 5 from 312 ratings, while TuningBase averages 5.0 from 1 ratings.
Do PowerVision 4 or TuningBase have ads?
Neither PowerVision 4 nor TuningBase shows ads.
Which is updated more often, PowerVision 4 or TuningBase?
PowerVision 4 ships an update monthly, and TuningBase every 2 weeks. Most recently, PowerVision 4 was updated on October 19, 2026 and TuningBase on October 16, 2026.

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