> On both my iPhone and my iPad it _destroys_ my battery.
On my iPhone, I've not even noticed any battery problems whilst running Tailscale 24/7. Are you running it with an exit node that funnels all traffic? I've just got it active for my nodes which might be why it's basically doing nothing.
Just checked on my phone - for the last 24 hours, Tailscale has 5m screen, 22h 45m background for less than 1% of battery usage (as in it shows "-" below the 1% entries.)
Can't remember what the default install is - do you have "VPN On Demand" turned on? That should keep it mostly idle unless you're actually talking to one of your nodes, I think?
On my iPhone, I've not even noticed any battery problems whilst running Tailscale 24/7. Are you running it with an exit node that funnels all traffic? I've just got it active for my nodes which might be why it's basically doing nothing.