Privacy Policy

Last updated: November 9, 2026

Chordseed ("we", "us") is a web app that helps you write songs and learn music theory. This policy explains what information we collect, why, and the choices you have. Chordseed is operated by Miguel Ángel Núñez Gallo, Nevada, USA.

What we collect

Account information. If you create an account, we store your email address. If you sign in with Google, we receive your name, email address and profile picture from Google. We do not receive your Google password.
Your content. Progressions, songs, lesson progress and preferences (instrument, style, language) you choose to save.
Subscription status. If you subscribe to Pro, our payment provider (Paddle) tells us your plan and subscription status. We never see or store your full card details.
Data stored on your device. The app uses your browser’s local storage to remember your settings and saved work on that device.
Microphone (Tuner only). The tuner analyzes sound in your browser to detect pitch. Audio is processed on your device and is never recorded, sent or stored.

How we use it

To provide the app, keep your work in sync across devices and remember your preferences.
To manage your account and your Pro subscription.
To answer messages you send us.

We do not sell your personal information and we do not use it for advertising.

Service providers

We use trusted providers to run Chordseed: Supabase (accounts and database), GitHub Pages (hosting), Google (optional sign-in and web fonts) and Paddle (payments, acting as merchant of record). They process data only to provide their service to us.

Google user data

When you sign in with Google, Chordseed only requests your basic profile (name, email, picture) to create and identify your account. Chordseed’s use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Keeping and deleting your data

We keep your data while your account is active. You can delete saved items in the app at any time. To delete your account and all associated data, email us at the address below and we will do it within 30 days.

Security

Data is sent over encrypted connections (HTTPS) and each user can only access their own data. No system is perfectly secure, but we work to protect your information.

Children

Chordseed is not directed to children under 13, and we do not knowingly collect personal information from them.

Changes

If we change this policy, we will update the date above and, for significant changes, let you know in the app.

Contact

Questions or requests, including deleting your account and data: open an issue at github.com/miguelcodecap/ChordSeed.