I would like to clarify on my response. I have my phone with me at all times because I use the stopwatch and I like having my note pad and calendar at my fingertips in case my client has questions pertaining to scheduling and or is asking me to email them information and visa versa.
I also like to be able to pull up certain Apps when a particular subject comes up.
It’s no different than having a clipboard which I see all the time
As for the trainer texting, talk it out and express your concern.