I tried this a while back.
TBH i prefer the old cg66 scheme, plus call out/in.
Apps...mmm... I'm perhaps of an age where they don't come naturally?
This one i stopped using because.
1. It keeps defaulting to tracking at 10 minute intervals, that with gps on my cheap samsung android phone seems to run the battery down much too fast for my liking.
2. More importantly. Beware not being able to sign off the app/log arrival due to poor mobile phone coverage. The resulting text alerts really freaked my wife out, and....
They start arriving when you are only 30 mins overdue. Not much of a delay in my world, certainly not grounds for declaring an emergency!
3. I'm not smart enough to see how to ensure that the app defaults to 30 mins tracking/position reports (my BRe wont get far in 15 mins!). Nor can I extend the "alarm period" to say at least 1hr.
I go afloat to relax, i find this all a bit of a "big brotherish" hassle tbh.
I do usually get radio checks off NCI on most excursions. Do HMCG now not take voyage reports, as they did before?