HomeAppsHealth & FitnessFrontier X PlusApps like Frontier X Plus Here are some great alternatives to Frontier X Plus by Fourth Frontier Technologies Private Limited : Heart Rate Plus: Pulse Monitor ★3.7 Titan Smart World ★4.0 PULSOID: Heart Rate Streaming ★4.0 Fastrack Smart World ★4.0 Heart Rate Monitor Plus ★3.6 X-FIVE Wearables ★4.6 Garmin Connect™ ★4.0 MyAccountability Plus ★4.8 Unitron Remote Plus ★4.7 HeartBeat Tracker ★3.4 CMF Watch ★3.4 XOfit ★3.2 iCardio Workouts & Heart Rate ★4.4 Curiscope Virtuali-Tee ★3.8 Healthzilla: Stress & Habits ★4.2 Bioheart ★4.6