Bluetooth doesn't work in calls. Every other app on my device works perfectly with Bluetooth audio, except this one... It insists on using my phone speaker. I loved the app before but I can't use it now due to the Bluetooth issue. EDIT after developer reply: Your reply is not helpful and it seems like you're not even bothering to address the issue. As said already, IT DOESN'T WORK. I know how to switch audio devices in the app, it does absolutely nothing and keeps using the phone speaker.