Is Hertzle free to play?

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

How often does Hertzle reset?

Once a day. Everybody gets the same puzzle, and a new one replaces it when the game's day rolls over.

Where does Hertzle run?

On halfquiz.com, and you can play it inside this page without leaving Alldle.

What kind of game is Hertzle?

It sits in Guessing, alongside the other daily games of that kind in the catalogue.

Guessing New

Hertzle

halfquiz.com

Listen to a tone and guess its frequency in hertz, somewhere between 150Hz and 2500Hz. Each daily challenge gives you three rounds, and your score depends on how close each guess lands to the real frequency, for a maximum of 600 points.

Hertzle

Guessing

The facts

Runs on: halfquiz.com
Category: Guessing
Universe: HalfQuiz
Languages: English
How often: A new puzzle every day
On Alldle since: September 2026
Price: Free, no signup

Questions about Hertzle

Is Hertzle free to play?: Yes. Hertzle runs in a browser at no cost, with nothing to install and no purchase to make.
How often does Hertzle reset?: Once a day. Everybody gets the same puzzle, and a new one replaces it when the game's day rolls over.
What languages does Hertzle support?: English.
Where does Hertzle run?: On halfquiz.com, and you can play it inside this page without leaving Alldle.
What kind of game is Hertzle?: It sits in Guessing, alongside the other daily games of that kind in the catalogue.

How it compares

If you play Hertzle, the closest things to it in the catalogue are Cutle, Magnitudle and More/Less. They sit in the same guessing category. See the full list of alternatives.