Privacy Policy

Account Information

When you create an account via Sign in with Apple, we receive your Apple-provided user identifier and, if you choose to share it, your name and email address. We do not receive or store your Apple ID password.

Practice Data

The app records practice session data including timing accuracy, tempo, drill results, and progress metrics. This data is stored locally on your device and may be synced to our servers if you are signed in, to enable cross-device access and backup.

Audio Data

The app accesses your device microphone solely to detect drum hits in real time during practice. Audio is processed on-device for onset detection and is not recorded, stored, or transmitted to our servers. No audio leaves your device.

Subscription Information

If you subscribe, Apple handles all payment processing. We receive confirmation of your subscription status from Apple but never see or store your payment details, credit card number, or Apple ID password.

Email Communications

We send three categories of email to the address linked to your account:

• Account emails — security alerts, sign-in links, billing receipts, and other messages necessary to operate your account. These are sent whenever required and cannot be turned off while you have an account.
• Product updates — announcements about new features, drill packs, and improvements. Sent only if you opt in.
• Offers and promotions — discounts, win-back offers, and occasional promos. Sent only if you opt in.

You choose your preferences during signup and can change them any time in Settings → Notifications. We record your choice (with timestamp and source) so we have an auditable consent trail.

Apple

We use Sign in with Apple for authentication and Apple's In-App Purchase for subscriptions. Apple's privacy policy governs their handling of your data.

Music Services

If you connect Apple Music for play-along practice, we access only the playback controls needed for your session. We do not access your music library data or listening history.

YouTube

If you connect your YouTube account for play-along practice, we use YouTube API Services to search for and play videos within the app. We access only the data necessary to enable video playback during your practice session.

We do not store your YouTube account credentials, watch history, subscriptions, or any other YouTube user data on our servers. Your YouTube authentication token is stored securely on your device and is used solely to enable playback features. You can disconnect your YouTube account at any time from the app's settings.

Your use of YouTube features is also subject to YouTube's Terms of Service and Google's Privacy Policy.

AI Features

When you use AI-powered features (such as the session builder or beat and fill generation), your messages and practice context are sent to our servers for processing. Conversations are stored with a conversation identifier to maintain session context and enable conversation history.

If you submit AI feedback through the in-app feedback form, your feedback is linked to the associated conversation. We may review the conversation history connected to your feedback to identify issues and improve AI quality. Conversation data is used solely for service improvement and is not shared with third parties for marketing or advertising purposes.

AI responses are generated by third-party AI services. Your messages are processed to generate responses but are not used to train third-party AI models.

Crash Reporting

We use Sentry for crash reporting and performance monitoring. Your anonymous user identifier and subscription tier are linked to error reports to help us diagnose issues and improve app stability. Sentry may also collect device information, app state, and network request metadata. This data is used solely to improve app stability and is not shared for advertising purposes.