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PRIVACY POLICY

Your photos never leave your device.

Altitag is built so that the most sensitive thing you have — the photo — is processed entirely in your browser. This page lists exactly what does leave, and why.

Effective June 10, 2026

What we don't collect

Altitag has no accounts and no signup. We never receive your photos: reading the image, extracting its EXIF data, drawing annotations and exporting the finished file all happen in your browser. Exports are re-encoded on your device with EXIF and GPS metadata stripped, so the file you download carries no location data. We use no cookies and we never sell or share personal data with anyone for advertising.

What leaves your browser

To find what's near a property, the editor sends the GPS coordinates from your photo — coordinates only, never the image — to data services:

  • Place data: our own map-tile CDN and API (hosted on Cloudflare), which for free lookups may query public OpenStreetMap Overpass servers, and for Pro lookups queries Google Places. Coordinates may be cached on our servers for up to 24 hours to reduce load; the cache is not tied to you in any way.
  • Ground elevation: Open-Meteo's public elevation API.
  • Walk and drive times: our own routing server (route.altitag.com), with public OSRM servers (routing.openstreetmap.de) as fallback.
  • Address search: if you type an address to place the property pin, that address is sent to a geocoding service (Photon, Nominatim or Google, depending on availability).

Like virtually all web infrastructure, these services and our host (Cloudflare) see your IP address as part of serving the request and may keep transient operational logs.

Analytics

We use a self-hosted instance of Plausible, a privacy-first analytics tool. It uses no cookies, collects no personal data, doesn't track you across sites, and gives us only aggregate counts (page views, referrers, country-level location). Your data never reaches a third-party analytics company.

Data stored on your device

The editor keeps a small amount of data in your browser's local storage: your Pro license key (if you have one) and editor preferences. It stays on your device; clearing site data removes it.

Pro subscriptions

Pro is sold through Polar, our merchant of record. Polar handles checkout, billing and your payment details — we never see your card number. We validate your license key against Polar's API to enable Pro features, and we count Pro lookups per license key to enforce the monthly fair-use cap. See Polar's privacy policy.

Contact form

If you write to us through the contact page, the name, email and message you provide are delivered to us via Web3Forms and used only to reply to you.

Your rights

Because we don't hold accounts or personal profiles, there is usually nothing for us to export or delete — but if you believe we hold any personal data about you, or you have any privacy question, get in touch and we'll resolve it.

Children

Altitag is not directed at children under 13 and we don't knowingly collect their data.

Changes

If this policy changes materially, we'll update the effective date above. Continued use of Altitag after a change means you accept the updated policy.

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