If you want a more GUI-oriented way of doing BLE packet sniffing, try the nRF Connect app. Not sure about iPhone, but if you let it sit in the background on And

If you want a more GUI-oriented way of doing BLE packet sniffing, try the nRF Connect app. Not sure about iPhone, but if you let it sit in the background on Android, you can pick up BLE activity from a nice little GUI on your phone. I use it every day.