Last updated: July 25, 2026. CaliberAtlas collects the minimum information needed to run and improve the site, and we do not sell personal data.
Information we collect
First-party analytics: page views, feature usage, and on-site search terms. We do not use Google Analytics or Facebook Pixel for this system. Our server uses the request IP address and user-agent string to derive a salted, pseudonymous visitor identifier. The analytics tables retain that identifier—not the raw IP address or user-agent string—and it changes each day to limit routine cross-day aggregation. It should not be treated as anonymous. This first-party system does not use analytics cookies. Advertising providers may separately use cookies as described below.
Local preferences: theme and units stay in your browser. Calculator profiles stay local unless you deliberately save account-backed data.
Contact messages: Resend processes the contact details and message you submit so the message can be delivered to us.
Newsletter subscriptions: we store your email address, subscription status, and subscription or unsubscribe timestamps in our application database. We use that information to send CaliberAtlas product updates through Resend and to honor opt-out requests. You can unsubscribe at any time using the link in a newsletter.
Advertising: Google AdSense and its partners may use cookies, web beacons, IP addresses, and device, browser, or other identifiers as a consequence of serving, personalizing, securing, and measuring ads. Browsing and ad-interaction data used for these purposes should not be treated as anonymous. Learn how Google uses information from sites that use its services on Google's partner-sites page.
Accounts and authentication
Supabase handles account authentication. If you choose Google sign-in, Google also processes the sign-in information needed to authenticate you. CaliberAtlas stores the user ID and basic profile needed to associate saved range cards, favorites, and range logs with an account; we do not have access to account passwords. Account-deletion requests can be made through the contact page.
User-submitted content
Comments, ratings, and submitted cartridge data are associated with the submitting account. Content intended to be public may be visible to other users and remains subject to moderation.
Service providers
Render provides application hosting.
Neon provides the PostgreSQL database used for account, application, and newsletter subscription records.
Supabase provides authentication and account services.
Google OAuth processes authentication data only when Google sign-in is chosen.
Resend handles contact-form and newsletter delivery.
Google AdSense provides advertising and may set advertising cookies.
Your choices
You may browse without an account, unsubscribe using the link included in each newsletter, request access to or deletion of account data, and control personalized advertising through Google Ads Settings. We retain newsletter opt-out status so we can suppress future sends. CaliberAtlas is intended for adults and does not knowingly collect information from people under 18.
Policy changes and contact
The date above changes when this policy is updated. Questions or privacy requests can be sent through the contact page.