Privacy Policy

Last updated: June 27, 2026

This Privacy Policy explains how the Storm Range application and website at stormrange.com — operated by Brimir Clough, a sole proprietor ("Storm Range", "we", "us", or "our") — collect, use, and share information when you use our app and related services (the "Service").

1. The short version

Storm Range is a "local-first" application: the shooting data you create — profiles, firearms, scopes, loads, range/DOPE logs, and similar — is stored on your own device, not on our servers. The information we hold on our servers is limited to what is needed to provide an account and a subscription: your phone number (for sign-in), and your subscription status.

2. Information we collect

Account information. When you sign in, you provide your mobile phone number. We use it to send you a one-time verification code and to identify your account. We store the phone number and a record of your subscription tier; we never store your verification codes in readable form.
On-device app data. The gear, profiles, ballistic solutions, range data, and logs you create are stored locally on your device (in the browser's storage or the app's local database). This data is not transmitted to or stored by us unless you explicitly use a feature that requires it.
Subscription & payment information. Subscriptions are processed by our payment providers (Stripe for web, and the Apple App Store or Google Play for in-app purchases). We do not collect or store your full payment card details; we receive only your subscription status and the identifiers needed to manage it.
Optional voice features. If you enable the optional voice assistant and use its online mode, the text of your spoken request may be sent to our language-model provider (Anthropic) solely to interpret the command. The ballistic calculations themselves run on your device. The voice feature also has a fully offline mode.
Technical logs. Our servers keep limited operational logs (such as request timestamps and error information) to operate and secure the Service.

3. SMS / text messaging

We send SMS text messages only for account verification and security (one-time passcodes). These are transactional messages — we do not send marketing or promotional text messages.

Consent. You provide your mobile number directly in the app and tap "Send code," which is your request and consent to receive a one-time verification code by SMS for that sign-in. We do not buy, rent, or import phone numbers from third-party lists.
Message frequency. A message is sent only when you initiate a sign-in (typically one message per attempt).
Rates. Message and data rates may apply.
Opt-out / help. Reply STOP to opt out of further messages, or HELP for help.

Mobile information sharing. No mobile information (including your phone number and SMS consent/opt-in) will be shared with third parties or affiliates for marketing or promotional purposes. Sharing with subcontractors that support the Service — such as our SMS delivery provider — is limited to delivering these messages. Text-messaging originator opt-in data and consent are not shared with any third parties.

4. How we use information

To create and secure your account and verify sign-ins.
To provide, maintain, and improve the Service.
To process and manage your subscription.
To respond to support requests and communicate about your account or the Service.
To comply with legal obligations and enforce our terms.

5. How we share information

We do not sell your personal information. We share information only with service providers who help us operate the Service, and only as needed:

Twilio — to deliver SMS verification codes.
Stripe, and the Apple App Store / Google Play — to process subscriptions.
Anthropic — to interpret optional online voice commands.
Fly.io — to host the Service.

We may also disclose information if required by law or to protect the rights, safety, and security of our users and the Service.

6. Data retention

We retain account and subscription information for as long as your account is active and as needed to provide the Service or comply with legal obligations. Verification codes are short-lived and single-use. On-device app data remains on your device until you delete it.

7. Security

We use reasonable technical and organizational measures to protect information, including hashing of verification codes and session tokens and encrypted connections. No method of transmission or storage is completely secure, and we cannot guarantee absolute security.

8. Your choices and rights

You can stop receiving SMS messages at any time by replying STOP.
You can delete your on-device data from within the app.
You may request access to or deletion of your account information by contacting us.

9. Children's privacy

The Service is not directed to children under 16, and we do not knowingly collect personal information from them. If you believe a child has provided us information, please contact us.

10. Changes to this policy

We may update this Privacy Policy from time to time. We will revise the "Last updated" date above and, where appropriate, provide additional notice.

11. Contact us

Storm Range is operated by Brimir Clough (sole proprietor). Questions about this policy? Contact us at ballistics.precise738@passmail.net.