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.
4.4(14 ratings)
Free
Best apps like JB4 Mobile
10+ similar apps compared and reviewed
3.7 avg rating
10 free apps
Updated October 2026
JB4 Mobile is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.
Top Alternatives to JB4 Mobile
dragy Connect by Harbin Qirui Technology Company With Limited Liability.
Strong Contender
⚽ Sports
2.5😞(19 ratings)
Free
This GPS-based performance meter allows users to track various acceleration metrics like 0-60mph and 1/4 mile times. It enables sharing performance data on leaderboards and videos with real-time overlays. A dedicated hardware device is required for testing.
What We Love
- 🚀 Accurate measurements
- 👍 Easy to use
- 🚀 Compact and lightweight device
- 🚀 Great performance tracking tool
Room to Improve
- 🐛 Frequent app crashes
- 🐛 Connectivity issues (no internet connection)
- 🐛 Leaderboard and data upload problems
- 🔇 Annoying voice announcements
- 🔋 Inconsistent satellite connection
- 🔇 Ads in the paid app
dragy·Lap - New GPS Lap Timer by Harbin Qirui Technology Company With Limited Liability.
Lap Timing, Overlay & AnalysisWorth Considering
⚽ Sports
0.0(0 ratings)
Free
This app acts as a next-generation GPS lap timer, compatible with various Dragy devices. It offers real-time predictive lap timing, dual-camera video recording with data overlays, and detailed analysis tools. Compete on leaderboards and share your best laps instantly.
