HVAC Mastery Privacy Policy

Last updated: October 29, 2026

HVAC Mastery ("we", "our", "the app") is a learning application for HVAC and refrigeration trade education. We take your privacy seriously.

Data We Collect

When you create an account, we collect:

• Email address — used for account authentication and password recovery.
• Display name — the name you choose to identify yourself in the app.
• Learning progress — completed lessons, quiz scores, earned badges, bookmarks, and study notes. This data is synced so your progress is preserved across sessions.
• App preferences — theme (light/dark mode) and reminder settings.
• Practice exam history — your EPA 608 practice exam scores and the questions you missed, synced so your readiness carries over to a new device.

App Usage Data

To improve the lessons, the app records how it is used: for example, which lessons are opened and how far into them people get, quiz and practice exam results, and which tools are used. Each record contains a random install ID, your account ID if you are signed in, the app version, and the platform. It never includes what you type, your name, or your email address.

We use this data only to understand which lessons work and where learners get stuck. It is stored with the rest of your data in our database provider (Supabase), is not shared with advertisers or data brokers, and is not used to track you across other apps or websites.

Data We Do Not Collect

• We do not collect your location data.
• We do not access your contacts, camera, photos, or microphone.
• We do not collect device identifiers for advertising purposes.
• We do not use cookies, advertising SDKs, or third-party analytics or tracking tools.

How We Store Your Data

All data is stored securely using Supabase, a cloud database platform hosted on Amazon Web Services (AWS) infrastructure. Data is encrypted in transit using TLS and encrypted at rest. Passwords are cryptographically hashed and are never stored in plain text.

Payment Data

HVAC Mastery is currently free. We do not collect, store, or have access to any payment or financial information.

Third-Party Sharing

We do not sell, rent, or share your personal data with any third parties. We do not display advertisements. Your data is used solely to provide the HVAC Mastery learning experience.

Data Retention

We retain your data for as long as your account is active. If you delete your account, all associated data is permanently removed from our servers.

Account Deletion

You can delete your account at any time from the app's Settings section (Profile > Delete Account). This permanently removes your account and all associated data including email, display name, progress, scores, badges, bookmarks, and notes. This action cannot be undone.

Children's Privacy

HVAC Mastery is intended for users aged 13 and older. We do not knowingly collect personal information from children under 13. If we become aware that we have collected data from a child under 13, we will delete it promptly.

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be reflected on this page with an updated "Last updated" date. We encourage you to review this page periodically.

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