Module

The phone is for checking a follow, not for rebuilding the chart.

The module keeps running on the terminal where you attached it. On the phone you see the position, the stop, and the comment that says why it followed. Alerts are the ones you turn on in MetaTrader 5.

A phone showing a simple chart. — A small screen is enough to see whether a follow is still open.

What you check

Open position, size, and stop.
The comment with the entry reason.
Whether automated trading is still on at the terminal.
A push when a follow opens or closes, if you enable it.

Closing the phone does not stop the module. Stopping it means removing it from the chart or turning automated trading off on the machine where it runs.