Fretwork privacy
Sky Wolf Studio (SWS Strategic Media LLC). Last updated September 5, 2026.The short version
Fretwork runs entirely on your device. It has no account, no ads, no analytics and no subscription. What you set up in it stays in your browser or in the app on your phone, and nothing is sent anywhere unless you choose to send it.
What the app stores
Your settings (which hand, which tuning, which room you were in, note names on or off), your saved chords, your chord charts and your drill progress. All of it lives in this browser's own local storage under the key fretwork1. Clearing the site's data, or uninstalling the app, deletes all of it. There is no copy anywhere else.
What leaves your device
Nothing, in normal use. The app does not fetch, upload, or report anything while you play, practice or build charts.
Two things exist on the web version at skywolfstudio.com that you have to choose to use:
- Feedback. If you type a message into the Feedback box and press send, that message and a short description of your browser are delivered to the developer's private Discord channel. Nothing is sent unless you press send, and the message is only what you typed.
- The tip jar. The heart button opens buy.stripe.com in a new tab. Stripe handles any payment under its own privacy policy; Fretwork never sees your card or your name.
In the Google Play version of Fretwork neither of these exists. The tip jar and the in-app feedback form are switched off there, and the Feedback link opens your email app instead.
What the app does not do
- No accounts, no sign-in, no passwords.
- No advertising, no ad networks, no tracking pixels.
- No analytics of any kind.
- No access to your microphone, camera, contacts, or location. The rhythm room plays sound; it never listens.
- No sale or sharing of data, because there is none to sell or share.
Children
Fretwork is a music practice tool suitable for any age. It collects no personal information from anyone.
Changes
If this page changes, the date at the top changes with it. Any new behaviour that would send data off your device will be described here before it ships.
Contact
Sky Wolf Studio, stephen@skywolfstudio.com.