Legal

Privacy Policy

Effective date: July 28, 2026

TyphoonGuard is built to keep you safe from storms — not to profile you. This policy explains exactly what we collect, why, and the control you keep over it.

1. Information we collect

We collect the minimum data needed to deliver the service:

• Registration email — used only for the magic-code login flow (no password is ever stored). We do not sell, profile, or share this email with third parties.
• Pins / locations — you manually create geofence pins (name + latitude/longitude). These are stored on our servers so you can receive alerts for those locations. Location data is not collected automatically or in the background.
• Barometric observations (on by default, easy to turn off) — devices with a barometer can contribute anonymous air-pressure readings that improve storm detection for everyone. The app asks you about this the first time you open it, and sharing stays on unless you turn it off (Settings → Observations), which you can do at any time. While sharing is on and you are actively using the app, the device submits at most one reading every 30 minutes: the pressure value and the device’s location at that instant. Nothing is collected in the background, the app never asks for location permission for this feature (it only works if you already granted location for the map), and readings are never used to track you.
• Device information — push notification token (APNs/FCM) so we can deliver alerts. No advertising ID, no persistent device fingerprinting beyond what is required for push delivery.
• Usage analytics — anonymous, aggregated metrics (e.g., “how many users opened the app during a typhoon”) to improve reliability. No personal identifiers.

2. How we use your data

• Email — to authenticate your account and send login codes.
• Pins & locations — to calculate risk, generate alerts, and show you the map view for the places you care about.
• Optional barometric observations — to improve storm detection (pressure drops are a strong signal). Data is aggregated and anonymized for research; individual readings are never sold or publicly attributed.
• Device token — to deliver push notifications you have opted into.

All data is used only for the core safety features described in the app (typhoon & squall alerts, pin monitoring, optional crowd-sourced pressure).

3. Data sharing

We do not sell your data. We share only in these limited cases:

• With Apple or Google — only the data required for push notifications and app-store compliance.
• With our infrastructure providers (Linode, object storage) — under strict data-processing agreements and only the minimum needed to run the service.
• Legal requirements — if we receive a valid court order (we will notify you where legally allowed).

4. Subscriptions & payments

Subscriptions are handled entirely by Apple or Google through their in-app purchase systems (powered by RevenueCat for management). We never see your payment details, card numbers, or billing address. RevenueCat and the app stores manage billing, renewal, and cancellation. What we do receive and store is your subscription status — the product you bought, its expiry date, and a store transaction identifier — because that is what unlocks paid features on your account. Deleting your TyphoonGuard account does not cancel a subscription: cancel it in your Apple or Google account settings (the app links you there).

5. Data retention & deletion

• You can delete your account at any time from the app (Settings → Account → Delete Account). Deletion is permanent and irreversible: your account is deactivated immediately — you are signed out everywhere, alerts stop, and your data is no longer used — and all associated personal data is fully purged from our systems within 90 days. Your email address cannot be reused for a new account until the purge completes.
• Deleting your account does not cancel an active subscription with Apple or Google (Section 4).
• We retain minimal logs for 90 days for abuse prevention and support, then delete them.
• Anonymous aggregated analytics (no personal identifiers) may be kept longer for product improvement.

6. Your rights

You can:

• Request a copy of your data
• Correct or delete your data
• Withdraw consent for optional features (barometric observations, push)
• Opt out of any non-essential processing

Contact us at the address below. We respond within 30 days (usually much faster).

7. Children’s privacy

TyphoonGuard is not directed at children under 13 (or the applicable age in your country). We do not knowingly collect data from children.

8. Changes to this policy

We will notify you of material changes via the app and update the effective date. Continued use after changes means you accept the updated policy.

9. Contact us

Questions about your privacy? Email [email protected].