1. Free and sells data to advertisers
2. Not free
3. Nonexistent
P1. If you want to have a good degree of health without requiring modern medicine, you should eat food that gives you a good degree of health without requiring modern medicine
P2. Successfully reproducing in an environment without modern medicine requires food that supports or does not tarnish a good degree of health
P3. Paleolithic humans successfully reproduced in an environment without modern medicine
C. If you want to have a good degree of health without requiring modern medicine, eating what paleolithic humans ate will support or not tarnish that goal
You can figure out the rest. Buy takeaways or use a gas stove for food, use a 24/7 gym for showering/toilet, and go to your job for the internet (alternatively, the library, free WiFi places, or mobile net).
That's probably the cheapest way to live without being entirely homeless (or just buying land/house).