Privacy Policy

Effective date: April 2026  ·  Cassileth Studio LLC  ·  Los Angeles, CA

What we collect

TapTune: Tempo collects minimal personal information, only when you choose to use our Challenge feature.

If you do not sign in with Apple: We do not collect any personal information. You can play the game, track your own stats, and enjoy the full single-player experience anonymously.

If you sign in with Apple to use the Challenge feature: We collect the following from your Apple ID:

• A unique user identifier (required) — used to recognize you on return visits and keep your Challenge data synced across devices.
• Your display name (required) — used to identify you to friends in Challenges. You can customize this at any time.
• Your email address (optional) — used only to send you important account-related messages and Challenge notifications that cannot be delivered via push notifications. If you choose "Hide My Email" when signing in with Apple, we receive a private relay address instead of your real email. Any emails we send are forwarded through Apple without us ever seeing your real address.

We do NOT collect:

• Your location
• Device identifiers used for tracking
• Contact information from your address book
• Any information beyond what is listed above

How we use your email

If you provide your email (or Apple relay address), we may use it to:

• Send you a reminder when a TapTune Challenge you received is about to expire
• Notify you when a Challenge you created has been completed by participants
• Send infrequent messages about significant app updates or related products from Cassileth Studio

We do NOT:

• Sell your email address to third parties
• Share your email with advertisers
• Use your email for unsolicited marketing

What happens on your device

Your game stats (songs tapped, scores, accuracy) are stored locally on your device only. They are never transmitted to us or any third party.

The app stores a local cache of song data on your device to allow offline play. This cache contains only song metadata (titles, artists, BPM values) and is not associated with any personal information.

Challenge data

When you sign in and use the Challenge feature, the following data is stored on our servers (Supabase):

• Your user identifier, display name, and email (if provided)
• Challenges you create and the songs selected
• Challenges you are invited to or accept
• Your scores on Challenge songs

This data is used solely to provide the Challenge feature. It is never sold, shared, or used for advertising.

Network requests

The app makes the following network requests:

• Fetching song data from our database (Supabase) on launch
• Streaming 30-second song preview audio from Apple's iTunes servers when viewing your results
• Fetching album artwork from Apple's servers
• If signed in: syncing your Challenge data with our database (Supabase)

Beyond the Challenge data described above, these requests contain no personal information.

Third-party services

TapTune: Tempo uses the following third-party services:

• Supabase — our database for song data and Challenge data. Subject to Supabase's privacy policy.
• Apple iTunes API — for song previews and artwork. Subject to Apple's privacy policy.
• Apple Sign In — for authentication when you use the Challenge feature. Subject to Apple's privacy policy.

Data deletion

To delete your account and all associated data including your email, display name, Challenge history, and scores, please contact us at cassilethstudio.com/support. We will delete your data within 30 days of your request.

International users

We process your data in the United States. If you are located outside the United States, please be aware that information we collect will be transferred to and processed in the United States.

Children

TapTune: Tempo does not knowingly collect any information from children under 13. The Challenge feature requires Sign in with Apple, which requires an Apple ID. Apple restricts Apple ID creation for users under 13 to managed Family Sharing accounts. The app contains no advertising and no in-app purchases that would require personal information.

Changes to this policy

If we make material changes to this privacy policy, we will update the effective date above. Continued use of the app after changes constitutes acceptance of the updated policy.

Contact

Questions about privacy? Contact us.

© 2026 Cassileth Studio LLC · Los Angeles, CA