Thank you for your reply. I haven't found anything similar in the App Store (to my knowledge, at least). And everything is done from scratch to convert the data received from the sensor, to share a custom map of the results of a session, etc. I sent another message to the Apple team with all the explanations... To be continued, and thank you for the précisions.

Thank you for your reply. I haven't found anything similar in the App Store (to my knowledge, at least). And everything is done from scratch to convert the data received from the sensor, to share a custom map of the results of a session, etc. I sent another message to the Apple team with all the explanations... To be continued, and thank you for the precisions.