Privacy

Last updated 11 November 2026.

Twelve Notes is a small independent project. Questions about this page: hello@twelvenotes.app.

The short version

There are no accounts, no cookies and no adverts on this site. The tools run in your browser. Sound from your microphone is not uploaded. We count visits and a few button presses, without cookies and without identifying you.

What stays in your browser

The site saves a few things in your browser's local storage so they are still there next time: your progress and scores in the ear training game, and settings such as tempo, tuning reference and whether you prefer C D E or Do Re Mi. This is not sent to us. You can remove it by clearing this site's data in your browser.

Your microphone

The tuner and Hit the note ask for your microphone when you press Start. The sound is analysed inside your browser to find its pitch.

The tuner does not record anything.

Hit the note records your run inside your browser to make the replay clip shown at the end, including your voice unless you untick "Include my voice in the replay clip". The clip is not uploaded. It is gone when you close or reload the page unless you save or share it yourself. If you share it, it goes to the app you choose, under that app's rules.

Counting visits

We use Umami, a privacy-focused analytics service, with its data stored in the European Union. It tells us how many people visit each page, which site or search brought them, their country, and their type of device and browser.

It also counts a few actions inside the tools, such as starting an exercise, finishing it, or saving a result card. These counts carry no notes, no scores tied to you and no audio.

Umami sets no cookies and stores nothing in your browser. We do not receive your IP address or anything that identifies you, and visits are not linked across days or across sites.

What our host sees

The site is served by Cloudflare. Like any web host, it processes your IP address and basic request details in order to deliver the pages and to protect against abuse. We do not use this to identify you.

Links to other sites

Some pages link to other sites, such as Ko-fi for supporting the project. Those sites have their own privacy policies.

Children

The site does not ask for or collect personal information from anyone, including children.

Changes

If the site starts to collect anything, for example through an optional email list, this page will say so before it happens, and the date at the top will change.