A few answers before you train.
What needs a signal, what needs an account, and what happens when you change gyms.
Does Kronos work offline?
What you can run and log in Kronos with no signal, and the few things that still need one.
Apple Health, Health Connect and Strava in Kronos
What Kronos shares with your health apps, which permissions you control, and where Strava fits.
Changing equipment and locations in Kronos
How to tell Kronos what you have, swap a movement, and set up a session for the place you are actually training.
What is free in Kronos, and when do I need an account?
The free timer, the free allowances, the account, and Kronos Pro, drawn as clearly as we can.