GasTrainingBLE app for iPhone and iPad

This app aims to learn the function of a gas detector using an iPhone or iPad connected via Bluetooth.
The app does not require any login and can be used by anyone from around the world.
Nicknames are used to classify people from each other(teacher and students), but this can be modified at any time.

One person starts the app as a teacher and the other starts as a student.
The teachers nickname will then appear on the students phone and they will be ready for training by tapping on the nickname.
The teacher starts training after all students are ready.
The teacher learns how to use the gas detector with the students while controlling the gas volume....

Best regard.