AntennaAlign Privacy Policy
Effective 17 October 2026
In short: AntennaAlign has no accounts, no ads and no analytics. Your location, camera view and saved targets stay on your phone. The app contacts a few public map and elevation services to draw maps and terrain, and those requests include coordinates and your IP address, as described below. The developer does not receive or store any of your data.
Who we are
AntennaAlign is a mobile app that helps you aim an antenna at a target by showing the bearing, distance and tilt to it, the terrain profile between the two points, and an augmented-reality view through your camera. It is developed by Jack Flowerday (“the developer”).
What the app uses on your device
| Item | Why | Where it goes |
|---|---|---|
| Location (GPS) | To work out the bearing, distance and tilt from where you are to the target, and to centre the map. | Used on your device. Coordinates are also sent to the elevation and map services listed below. |
| Camera | To show the augmented-reality alignment view and take screenshots of it. | The live image is processed on your device and is never uploaded. |
| Motion sensors and compass | To measure which way the phone is pointing. | Used on your device only. |
| Photo library (write access) | To save an alignment screenshot to your photos when you tap the screenshot button. | Saved on your device only. The app does not read your existing photos. |
| Saved targets and settings | To remember the targets you save and your preferences (antenna heights, frequency, appearance, calibration). | Stored locally on your device. Deleting the app deletes them. |
All of these permissions are optional. If you decline location access you can place your position on the map by hand.
Information sent to third-party services
To draw maps and terrain, the app requests data from the services below. Each request is made directly from your phone to that service, so the service sees your IP address and the information in the request. The developer is not involved and does not receive a copy.
| Service | Used for | What it can see |
|---|---|---|
| GitHub Pages (the developer's website, jbflowerday.github.io) | A list of Australian cell sites for the Scan tab, built from Australian Communications and Media Authority information. | Your IP address when the file is downloaded. Your location is not sent: the nearest sites are worked out on your phone. |
| Amazon Web Services (open Terrain Tiles dataset) | Ground elevation along the path between you and the target, and terrain for the camera view's skyline. | The map tiles requested, which cover the area around you and along the path to the target, and your IP address. |
| OpenTopoMap / OpenStreetMap | Topographic map tiles. | The map area you view and your IP address. |
| Esri | Satellite imagery and street map tiles. | The map area you view and your IP address. |
| unpkg | Delivers the Leaflet map library used to display the map. | Your IP address. |
These services have their own privacy policies, linked above, which govern how they handle that information.
What we do not do
- We do not collect your name, email address or any account information. There are no accounts.
- We do not use analytics, advertising or tracking tools, and we do not track you across other apps or websites.
- We do not sell or share your personal information.
- We do not upload your camera images, photos or saved targets.
Data retention and your choices
Your saved targets and settings stay on your phone until you delete them. You can remove a saved target from the Saved tab, or delete everything by uninstalling the app. You can turn off location, camera, motion and photo access at any time in your phone's Settings; some features will stop working without them.
Children
AntennaAlign is not directed at children under 13 and does not knowingly collect personal information from anyone.
Security
Because the app keeps your data on your own device and does not run its own servers, there is no developer-side database that could be breached. Requests to the third-party services above are made over encrypted (HTTPS) connections.
Changes to this policy
If the app's data practices change, this page will be updated and the effective date above will change.
Contact
Questions about this policy? Open an issue at github.com/jbflowerday/jbflowerday.github.io/issues.