Comparison

DashCommand vs JB4 PRO

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

Head to head
About

DashCommand

Turn your smartphone into a powerful vehicle monitoring and diagnostic tool. Track engine performance, fuel economy, and instantly diagnose check engine lights. Features advanced dashboards for performance analysis and off-roading.

Highlights
  • Customizable vehicle performance display
  • Engine and vehicle data logging
  • Read and clear check engine lights
  • Professional skidpad for G-force analysis
  • Race track mapping
  • Inclinometer for off-roading
  • Data log playback
Features
Currently charting
Read full description

Transform your iPhone into a customizable display and monitoring system. DashCommand puts you in control - Monitor and data log engine and vehicle performance, fuel economy, and instantly read and clear troublesome check engine lights, all with the easy to use DashCommand app. This app also features a professional skidpad showing lateral and accel/braking Gs with min/max indicators, a race track that visually maps out your location, acceleration and braking as you drive laps around the track, an inclinometer that shows rolling angle and vehicle pitch for off-roading, and the ability to data log, record and playback log files showing OBD-II and acceleration data. DashCommand is a SEMA Show 1st runner-up for best mobile electronics product and four-time SEMA Global Media Award winner! DISCLAIMER: DashCommand requires a compatible third-party hardware interface, purchased separately, to communicate with the vehicle. DashCommand supports all OBD-II and EOBD compliant vehicles sold worldwide. Please verify that your vehicle is OBD-II/EOBD compliant before purchasing! Not all OBD-II compliant vehicles will have support for all of these parameters. Manufacturer-specific data is available for select vehicles, through In-App purchase. OBD-II Hardware compatibility: Auto Meter DashLink, PLX Kiwi 3 and Kiwi 4, OBDLink MX+, ELM compatible WiFi and , GoPoint BT1 Watch a video on DashCommand: https://www.youtube.com/watch?v=y12tbLmf_J0 For suggested hardware, see: http://palmerperformance.com/hardware

About

JB4 PRO

Integrate your performance tuner with your smartphone to adjust engine maps, view real-time data, and manage system settings. This app requires a specific Bluetooth adapter for full functionality.

Highlights
  • Change maps
  • Monitor live engine data
  • Record logs
  • Manage fault codes
  • Update JB4 firmware
  • Smartphone integration
Read full description

Smart phone integration for your JB4 performance tuner to change maps, monitor live engine data, record logs, manage fault codes, update JB4 firmware, and much more! Note the JB4 PRO free app requires the JB4 PRO BT adapter and is not compatible with the JB4 Mobile BT adapter.

Screenshots

DashCommand4 screens
JB4 PRO4 screens

Verdict

The call

The clearest difference is price: JB4 PRO at Free against DashCommand's $9.99. JB4 PRO also leads on in-app purchases (none vs 15) and update cadence (fortnightly vs every 3 months). DashCommand's advantage is ratings volume (2.1K vs 14) and chart position (#36 vs unranked). On review sentiment, 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

JB4 PRO is free to download; DashCommand costs $9.99 up front. DashCommand sells 14 one-off in-app purchases. JB4 PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

JB4 PRO holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: DashCommand has 2.1K ratings behind it against 14, so its average is the more settled of the two. Written reviews point the same way: 48% of DashCommand's written reviews are positive against 50% of JB4 PRO's.

UpkeepUpdate frequency

DashCommand ships an update every 3 months, JB4 PRO fortnightly. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

Scorecard8 real differences · 3 level
DashCommand versus JB4 PRO: the parameters behind the verdict, then further details
ParameterDashCommandJB4 PRO
Price$9.99Free — better
Rating4.2 (2.1K ratings)4.4 (14 ratings) — better
Positive reviews47.5% of reviews50.0% of reviews — better
Number of ratings2.1K — better14
Update frequencyEvery 3 monthsFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#36 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.0
Further details — not scored
Size49 MB22 MB
Age rating4+4+
DeveloperAuto Meter Products, Inc.Burger Motorsports, Inc

Customer experience

DashCommand

All ratings2,139 ratings
Positive81.9%
Neutral3.0%
Negative15.1%
Written reviews440 reviews
Positive47.5%
Neutral8.2%
Negative44.3%

JB4 PRO

All ratings14 ratings
Positive78.6%
Neutral14.3%
Negative7.1%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Bugs and requests

DashCommand

Reported bugs

5 issues
  • App crashes or freezes
  • Fails to connect to OBD2 adapter
  • Incorrect data readings
  • Compatibility issues with newer iOS versions
  • Expired license/subscription problems

Requested features

5 requests
  • CarPlay support
  • More customization options
  • Automatic vehicle detection
  • Improved user interface
  • Expanded vehicle compatibility

JB4 PRO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

14 purchases

DashCommand

One-time14
  • Ford 2002$9.99
  • Ford 2003$9.99
  • GM 2000$9.99
Show 11 more
  • GM 2001$9.99
  • Ford 2013$9.99
  • GM 1998$9.99
  • Ford 2004$9.99
  • Ford 2005$9.99
  • Ford 2006$9.99
  • GM 2002$9.99
  • GM 2003$9.99
  • GM 2004$9.99
  • GM 2005$9.99
  • GM 1999$9.99
None

JB4 PRO

No in-app purchases

Questions

Is DashCommand free?
DashCommand costs $9.99, and also offers in-app purchases.
Is JB4 PRO free?
JB4 PRO is free to download, with no in-app purchases.
Which has better reviews, DashCommand or JB4 PRO?
JB4 PRO is rated higher. DashCommand averages 4.2 out of 5 from 2.1K ratings, while JB4 PRO averages 4.4 from 14 ratings.
Do DashCommand or JB4 PRO have ads?
Neither DashCommand nor JB4 PRO shows ads.
Which is updated more often, DashCommand or JB4 PRO?
DashCommand ships an update every 3 months, and JB4 PRO fortnightly. Most recently, DashCommand was updated on October 15, 2026 and JB4 PRO on October 1, 2026.

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