Is Fermi Unlimited free to play?

Yes. Fermi Unlimited runs in a browser at no cost, with nothing to install and no purchase to make.

How many times a day can I play Fermi Unlimited?

As often as you like. Fermi Unlimited is one of the unlimited games in this directory, so it does not hold you to a single puzzle a day.

On playdaily.org, and you can play it inside this page without leaving Alldle.

It sits in Logic & Math, alongside the other daily games of that kind in the catalogue.

Logic & Math New

Make educated numerical guesses to Fermi-style estimation questions and see how close your answer is.

Fermi Unlimited

Logic & Math

Is Fermi Unlimited free to play?: Yes. Fermi Unlimited runs in a browser at no cost, with nothing to install and no purchase to make.
How many times a day can I play Fermi Unlimited?: As often as you like. Fermi Unlimited is one of the unlimited games in this directory, so it does not hold you to a single puzzle a day.
What languages does Fermi Unlimited support?: English.
Where does Fermi Unlimited run?: On playdaily.org, and you can play it inside this page without leaving Alldle.
What kind of game is Fermi Unlimited?: It sits in Logic & Math, alongside the other daily games of that kind in the catalogue.

If you play Fermi Unlimited, the closest things to it in the catalogue are Shikaku of the day, Clues By Sam and Seedle.io. They sit in the same logic & math category. See the full list of alternatives.