Antenna CalculatorPrivacy policy
Last updated 16 November 2026.
Data on your device
Antenna Calculator performs calculations on your device. It stores inputs and preferences, antenna projects and tuning journals, measurements you import, and the photos and comments you add in the app’s private storage. Sergey Sotnikov does not receive this data from the Google Play edition. The app has no accounts, advertising, analytics, tracking, or app backend. The Google Play edition does not request internet, camera, microphone, contacts, or location permissions.
Files, clipboard and links
The app uses Android’s file and photo pickers to read the files you select, including Touchstone S1P files, journal backups and project photos. When you export a file, Android writes it to the destination you choose. Your storage provider may sync files to its own service. Copy places the selected result on the Android clipboard. Links you open from the app are handled by your browser or another app, under that service’s privacy policy.
Retention and deletion
Local data stays on the device until you delete it, clear app storage, or uninstall the app. Android backup is disabled for the app. Exports you previously saved are separate files. To remove them, delete them from their destination.
The website and support
This website serves static pages and images. It uses no cookies or analytics scripts. The hosting infrastructure processes connection details, including IP addresses, to deliver pages and maintain the service. If you contact support, your email address and the information you send are used to respond and troubleshoot. You can use the support address below to ask about or request deletion of your correspondence.
Other editions
The separately distributed GitHub Direct edition connects to GitHub to check for updates and download them. Those requests use standard network information, such as your IP address. Project and calculation data stay on your device.
Contact
Sergey Sotnikov, ssotnikov@gmail.com.