Privacy Policy

We collect information you provide directly and information generated as you use the App. We describe each category below. We only describe practices the App actually performs.

• Name and email address you provide at sign-up, or that is shared by Google when you sign in with Google.
• Authentication identifiers and password credentials, which are stored in hashed form by our authentication provider.
• Profile details you later edit inside the App.

• Course progress, completed lessons and modules, quiz and practice-exam answers and scores.
• Messages you send to the in-app AI assistant and the conversation history associated with them.
• Images you choose to upload to the AI assistant for analysis.

Our infrastructure providers necessarily receive standard technical request information, such as your IP address and browser or device user agent, in order to deliver and secure the service. We do not operate advertising trackers, precise location tracking, device fingerprinting, or third-party analytics profiling in the App. If you email us a bug report from Settings, the message you send may include the app version and device type shown to you before sending.

• Feature usage counters, including AI question counts and AI image-analysis counts, recorded to apply plan limits.
• Subscription status, plan, and related records used to determine what content your account can access.

HVAC Pro Vault includes an optional AI assistant. You choose what you submit to it. Prompts you submit, any image you attach, and relevant HVAC reference material from our own knowledge base are transmitted through Lovable's AI gateway infrastructure to a Google Gemini model so a response can be generated.

• Your AI conversations and messages may be saved to your account so your history is available to you later.
• You may upload HVAC-related images (for example equipment, nameplates, or wiring) for AI analysis.
• AI question and image-analysis counts are recorded against your account to enforce plan limits.
• AI submissions are processed by the third-party infrastructure required to produce the response.
• Please avoid submitting unnecessary personal, confidential, or sensitive information through the assistant.

We do not use your AI conversations to train AI models. AI responses may be inaccurate and are provided for reference only.

Images you voluntarily upload to the AI assistant are stored in a private storage bucket in our backend (Supabase Storage) that is not publicly listed and is associated with your authenticated account and our backend services. Uploaded images are transmitted to the AI provider described above so your question can be answered.

Subscriptions are purchased through the Apple App Store (and, in the future, Google Play). Payment details are entered with and handled by the payment provider; we do not receive or store your full credit card number. We receive and store only subscription-related information needed to manage access, such as the plan, status, current period end, and the provider's customer and subscription identifiers. If subscriptions are offered through the Apple App Store or Google Play in a future release, those purchases will be processed by Apple or Google under their own terms and privacy policies, and we would receive only the resulting entitlement status.

• To create and maintain your account and keep you signed in.
• To deliver course content, save your progress, and sync it across your devices.
• To operate the AI assistant and enforce plan-based usage limits.
• To process subscriptions, billing, renewals, and cancellations.
• To provide customer support and respond to your requests.
• To secure the App, detect abuse, and diagnose technical problems.
• To send service and account notices such as sign-in and password-reset emails.

We do not sell your personal information, and we do not use it for third-party advertising.

Account data, progress data, AI conversations and messages, AI usage records, and subscription records are stored in our Supabase-hosted database, protected by row-level security rules that restrict each record to the account that owns it. Uploaded AI images are stored in private Supabase Storage. Some preferences and cached progress are also stored locally on your device using browser local storage so the App remembers your place.

We rely on the following providers to operate HVAC Pro Vault:

• Supabase — authentication, database, and private file storage infrastructure.
• Apple — in-app purchase and subscription billing for the iOS app.
• Lovable — application hosting infrastructure and the AI gateway used to route AI requests.
• Google — the Gemini model used to generate AI responses, and Google Sign-In if you choose to sign in with Google.
• Apple / Google Play — only if and when in-app purchase or sign-in functionality is implemented in a future mobile release.

These providers process data only as needed to perform their service for us, under their own privacy and security commitments.

We share personal information only: (a) with the service providers described above; (b) when you direct us to; (c) to comply with law, legal process, or a valid government request; (d) to enforce our Terms or protect the rights, safety, and property of users or the public; and (e) in connection with a merger, acquisition, or sale of assets, in which case we will notify you.

We retain account, progress, and conversation data for as long as your account remains active. After account deletion, personal data is removed from active systems, except for limited records we are required to keep for legal, tax, billing, or fraud-prevention purposes. Backups are rotated on a routine schedule and expire in the ordinary course.

You can delete your account at any time from Settings → Account → Delete My Account. Account deletion is designed to remove your profile, AI conversations and messages, AI usage records, course and progress information, subscription records maintained by the App, uploaded AI images associated with your account, and your authentication account. You are signed out after the deletion completes, and locally stored data on that device is cleared. Deletion is permanent and cannot be undone. You may also request deletion by emailing jownahlabssupport@gmail.com. Records held independently by third parties such as the payment processor are governed by those providers, and limited information may be retained where legally necessary for legal, security, fraud-prevention, accounting, payment-dispute, or regulatory reasons. Cancel any active subscription before deleting your account.

HVAC Pro Vault is a professional training tool intended for adults working in or training for the HVAC trade. It is not directed to children under 13, and we do not knowingly collect personal information from children under 13. If we learn that we have collected such information, we will delete it.

HVAC Pro Vault provides educational, informational, troubleshooting, and AI-assisted information. We do not guarantee that AI-generated or troubleshooting information will always be accurate, complete, or appropriate for every equipment configuration. You remain responsible for following manufacturer instructions, applicable electrical and mechanical codes, proper safety procedures, and use of appropriate personal protective equipment, and for verifying equipment specifications and applying professional judgment. HVAC Pro Vault and Jownah Labs do not replace required professional training, licensing, certification, manufacturer documentation, or applicable safety procedures.

We use industry-standard safeguards including encryption in transit (HTTPS/TLS), encrypted storage at rest with our infrastructure provider, row-level authorization on every user record, server-side verification of subscription entitlements, and least-privilege access for administrative keys. No online service can be guaranteed to be perfectly secure; please use a strong, unique password and notify us of any suspected unauthorized access.

Depending on where you live, you may have the right to access, correct, export, restrict, or delete your personal information, to object to certain processing, and to withdraw consent. You can update your profile and delete your account directly in the App, or contact us to exercise any other right. We will not discriminate against you for exercising these rights.

We may update this Privacy Policy as the App evolves. When we make material changes we will update the "Last updated" date above and notify you in the App or by email. Continued use after an update means you accept the revised Policy.

HVAC Pro Vault is operated by Jownah Labs. Questions or privacy requests: email jownahlabssupport@gmail.com.