CompareOpen in Google PlayApp info
- Installs
- 5,000+
- Category
- Auto & Vehicles
- Content rating
- Everyone
- Version
- 1.5.4
- Released
- Jun 21, 2025
- Last updated
- 11 Oct 2026
- In-app purchases
- No
- Contains ads
- No
- Promo video
- No
- Requires Android
- 7.0
4.431 ratings
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21
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What's newin version 1.5.4
Added user adjustable shift light option on the settings page
About this app
JB4 Free App!
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.