Which Bluetooth profile is used?
CSCP (Cycling Speed and Cadence Profile).
Is the connection encrypted?
Yes, man-in-the-middle (MITM).
Are there other modules built in like WLAN, GSM, LTE etc.?
Is the data on the smartphone encrypted?
No, there is no sensitive data on the phone. Only stored simple data like calories burned, distance biked and date time in a SQL database. The app itself has standard encryption from the app store and is done automatically. We have not applied an extra encryption ourself.
Do other Apps have access to the data of the Deskbike App?
Is there any connection from the App to Deskbike so that you can use the data also only for statistical purpose?
Can you identify the smartphone which uses the App?
Only standard App Store and Google play store analytics.