SuperHeart Multi app for iPhone and iPad

Create a Team and assign transmitters to each player.
In RR mode (beat to beat), you can record up to 14 players simultaneously.
Start and stop recording for all players at the same time with one click.
With one click, all CSV files with raw measurement data are sent to
you by e-mail.
Your measurements - just your data.
A Polar H10 transmitter/s or H7 transmitter/s are required for this app to work.
You then process the measured raw RR data in the programs of your
choice (we recommend Kubios Scientific).
The accuracy of the application is checked with a polar V800 watch and
is R2=0.9994.