Everyone signed in to this pad sees the same counters and entries, live. With no signal it keeps working and catches up when you're back in service. Blank fields still print their label so nothing gets dropped. FG, stage duration and depths fill in on their own; type over any of them to override.
Frac and wireline comms for the whole pad.
Tap the invite link you were sent (text or GroupMe), type your name, then Share → Add to Home Screen. The icon opens signed in.
You're the first one here, so you're the admin. Your PIN is only for you; everyone else joins with an invite link you send them.