Does it still eat your battery? It used to, and it was so annoying I moved to Nebula
Tailscale is built on wireguard but it is not just wireguard. I want a wireguard only solution.
Got it. The key there would be to find a WireGuard app that supports the "VPN on Demand" feature of iOS. It should be called out on their app page in the App Store, if not in their documentation.
https://tailscale.com/kb/1291/ios-vpn-on-demand