My heart rate shows up in the 4iiii app but not my other sensors. Why? March 13, 2020 22:29 Updated Once you have paired the app to your Viiiiva, you need to pair Viiiiva to your ANT+ sensors. Follow the instructions in Section 3 of the User Guide. Related articles How Do I Bridge ANT+ Sensors to My Bluetooth Device Using Viiiiva? Why can't I pair my Viiiiva? It does not show up in the app scan list. With which apps can I use Viiiiva? Viiiiva User Manual How should I store Viiiiva in between workouts?