Your data stays on your phone. Here is exactly what doesn’t.

The short version

• No account, no sign-in, no analytics, no advertising, no tracking, and no crash-reporting library in the app.
• Your rifles, loads, zero, scope, shots, range cards, calibration records, settings, and saved devices are stored only on your phone. We have no copy and cannot see them.
• Two things leave the phone: your coordinates go to the U.S. National Weather Service when you use the nearest-station weather estimate, and the app downloads its signed projectile catalog from our catalog server. Neither request carries anything about you or your rifles.
• You can export everything to a file, delete saved location data from inside the app, and remove all of it by deleting the app.

Who we are

American Marksman Ballistics is published by American Marksman Company Inc., Volusia County, Florida, USA (“we”). The app is titled American Marksman on your phone. Questions about this policy go tosales@PrecisionRifleworks.us.

What the app stores on your device

Everything you enter or measure lives in the app’s private storage on your phone (or, for the web build, in your browser’s storage):

• Rifle profiles: name, scope and click value, zero distance, sight height, barrel twist, and the scope-check results you save.
• Ammunition and loads: the projectile, the ballistic coefficient and its model, and the muzzle speed you entered or measured, with a label saying which.
• Shots and range cards, including the conditions at the time and, if you had the weather-station feature on, the coordinates used for it.
• Live-fire calibration records and their verification history.
• Settings: units, display mode, text size, teaching level, and which devices you have saved for reconnection.
• A cached copy of the projectile catalog and its trust metadata.

None of this is uploaded anywhere. There is no cloud sync, no backup service of ours, and no server that receives it.

What leaves your device

1. Coordinates, to the National Weather Service

When you turn on Position and the nearest weather station, the app asks for permission to use your location while you use the app. It then sends your latitude and longitude to api.weather.gov, a service of the U.S. National Weather Service (part of NOAA), to find nearby observation stations and read their latest temperature, pressure, and humidity. NOAA receives your coordinates, your IP address, and the app’s standard request headers, and handles them under theweather.gov privacy policy.

The app does not send your location anywhere else, does not send it in the background, and does not send it at all while the feature is off. Your latitude is also used on the phone itself for the earth-rotation allowance in the firing solution. Coordinates saved with shots and conditions can be deleted at any time with Delete saved location data in Settings; rifles and the rest of each shot stay intact.

2. Catalog updates, from our catalog server

The app periodically downloads the signed projectile catalog — a public file of projectile identities, masses, diameters, and drag values, with no personal data in it — from our catalog server, which is hosted on GitHub Pages. GitHub receives the request, including your IP address and standard request metadata, underGitHub’s privacy statement. The request carries no identifier from you and nothing about your rifles or shots. If the download fails, the app keeps using the last good copy.

3. Nothing else

There is no analytics, advertising, or crash-reporting library in the app, and the app makes no other network requests. If a future version adds one, this policy will say so before it ships.

Permissions and sensors

Location (while using the app)

Used only for the weather-station lookup described above and for the earth-rotation latitude. On iPhone, the compass heading is also read on the phone to capture shot direction when you ask for it. The app never uses location in the background.

Bluetooth

Used only to connect to devices you choose — a rangefinder, a chronograph, or a weather meter. Readings feed the firing solution and are stored with the shot on your phone. The app talks to the device directly; it does not sign in to any device maker’s cloud service. On Android the app shows a persistent notification while it keeps a saved device connected during a field session; on iPhone it can keep a saved device connected through screen lock.

Motion and barometer

The phone’s barometer measures air pressure at the firing line. Motion data is used on the phone to judge whether the compass reading is steady. Nothing is transmitted.

Notifications (Android)

Only for the “device connected” notice that Android requires while a device session runs. The app sends no other notifications.

Garmin watch bridge (Android, optional)

If you install the optional watch app, the current solution is passed to the Garmin Connect app on your phone so it can be shown on your watch. That app belongs to Garmin and is covered by Garmin’s own privacy policy.

You can revoke any permission in your phone’s settings. The related feature stops; the rest of the app keeps working.

Files you export

Download my data writes a single file containing your rifles, loads, shots (including any saved coordinates, unless you deleted them), calibration history, and settings. You choose where the file goes and who sees it; anyone you share it with can read it.Restore reads a file you pick. Neither passes through us.

The web test build

The browser version stores the same data in your browser’s local storage on the device you use, caches the app for offline use, and keeps a small local log of how the interface is used (for example, taps to the first solution) so we can judge the design during testing. That log never leaves the browser. Clearing the site’s data in your browser removes all of it.

App stores and beta distribution

If you install a test build through Apple’s TestFlight or Google Play’s testing tracks, Apple or Google may collect device information, crash reports, and any feedback you choose to send, under their own privacy policies, and may share crash reports and feedback with us. We receive nothing else about you from them.

Children

The app is intended for adults and is not directed to children under 13. We do not knowingly collect personal information from children.

Your choices

• Turn the weather-station feature off, or revoke location permission, and no coordinates are sent.
• Delete saved coordinates with Delete saved location data in Settings.
• Export your data whenever you like; it is yours.
• Delete the app (or clear the site’s data in your browser) to remove everything. Because we hold no data about you, there is nothing on our side to delete — but write to us with any question and we will answer it.

Changes to this policy

When the app’s data handling changes, we update this page and the effective date at the top. Material changes are also noted in the release notes of the version that makes them.

Contact

sales@PrecisionRifleworks.us
American Marksman Company Inc., Volusia County, Florida, USA.