

Why is the article using diagonal screen size as their measurement for phone size? In that case you could have a phone the exact same size get “bigger” just because bezel sizes have shrunk over the years.
They specifically call out the iPhone SE as a “small phone” that they seem to want. But the newest iPhone, the iPhone 16 is only 6% bigger in width and height. Fractions of an inch larger. I can totally understand why somebody would want a phone with smaller overall dimensions, but why on earth would your metric for an ideal phone be a smaller screen?
You can get a VPS on Vultr for $5 a month that’ll be plenty for your use case. For security look into mTLS. Web servers like Caddy support it pretty easy. You put a certificate on you and your wife’s phones and only you will be able to connect to your endpoint.