Switching over from ST ( a long road). Do I need a subscription to get notifications or to access my home automation system from outside my WiFi network.
As with ST and google home can control anything from anywhere on my phone.
The Nabu Casa cloud option is $6.50 per month (proceeds go to supporting Home Assistant development), you get a free trial. You don’t have to use it. There are free options like DuckDNS or a VPN.
This could be https://, but it is a bit more complex, as you will need a DNS certificate that goes with the name. Http:// is easier, but will not be encrypted.
There are many options to use DNS, DuckDNS is one of them, but you can use any DNS provider; again the difficulty is generating a https certificate
VPN would solve that issue, instead of opening a port for HA, you open a port for VPN.
When connected to VPN you’re basically connected straight into the local network.
Nabucasa can also solve it, no need to open a port; HA will keep the connection to Nabucasa open