DashCommand vs JB4 PRO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- Change maps
- Monitor live engine data
- Record logs
- Manage fault codes
- Update JB4 firmware
- Smartphone integration
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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
Verdict
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
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.
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.
DashCommand ships an update every 3 months, JB4 PRO fortnightly. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.
| Parameter | DashCommand | JB4 PRO |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.2 (2.1K ratings) | 4.4 (14 ratings) — better |
| Positive reviews | 47.5% of reviews | 50.0% of reviews — better |
| Number of ratings | 2.1K — better | 14 |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #36 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 49 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Auto Meter Products, Inc. | Burger Motorsports, Inc |
Customer experience
DashCommand
JB4 PRO
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
DashCommand
- Ford 2002$9.99
- Ford 2003$9.99
- GM 2000$9.99
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- 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
JB4 PRO
No in-app purchases








