Privacy Policy

Last updated:

ToneForge is a guitar-tone-matching tool available as a web app and as an iOS app. This page describes what data the app handles. Both versions are designed to keep your data on your device wherever possible.

What we store on your device

Everything the app remembers — your gear presets, saved tones, onboarding answers, library progress, and (web) reviews you write — is kept locally. On the web app it lives in your browser's localStorage under toneforge.v1. On the iOS app it lives in the app's sandboxed UserDefaults and Caches directory. It does not leave your device.

Network calls the iOS app makes

The iOS app makes outbound HTTPS calls in only three situations:

• iTunes Search API (itunes.apple.com/search) — when you search for a song or load a tone card, the app queries Apple's public iTunes Search API to fetch cover art and the 30-second audio preview. Only the song / artist text you typed (or that comes from the built-in catalog) is sent. No identifier of you or your device is attached.
• Tone recipe service (toneforge-five.vercel.app/api/tone-recipe) — when you use "Search any song" to look up a tone outside the built-in catalog, the song name, artist, release year, and genre you selected are sent to our serverless function. The function returns a tone recipe (gear suggestion + amp settings + tips). The request is anonymous: no account, no device id, no IP-based identifier is stored. The server caches recipes by lowercased "artist|song" key purely as an efficiency optimisation. You can audit the request in any HTTPS proxy.
• RevenueCat purchase verification (api.revenuecat.com) — when you start a subscription or restore purchases, the RevenueCat SDK communicates with Apple's IAP infrastructure and RevenueCat's servers to verify the receipt and grant the entitlement. RevenueCat's own privacy policy applies to that exchange.

What we don't do

• We don't run any user accounts — there is no email, password, profile, or login.
• We don't set tracking cookies and we don't load third-party advertising pixels.
• We don't load third-party analytics SDKs (no Firebase Analytics, no Mixpanel, no Amplitude).
• We don't sell, share, or otherwise transmit your saved tones or gear setup.

App Tracking Transparency (iOS)

The iOS app does not track you across other apps or websites and does not request App Tracking Transparency permission.

Clearing your data

iOS: Open ToneForge → Profile → "Reset all data". This permanently deletes saved tones, gear setup, onboarding answers, and library progress on the device. Uninstalling the app also wipes its sandbox.

Web: Use your browser's "Clear site data" option for this origin, or open the developer console and run localStorage.removeItem('toneforge.v1').

Children

ToneForge is intended for general audiences (rated 4+ in the App Store). The app does not knowingly collect data from anyone under 13. No category of personal data is collected from any user.

Changes

If this policy changes, the date above will change with it. The app does not send announcements, so check back here.

Contact

Questions? support@toneforge.app.