A440 privacy policy
Updated September 27, 2026. Developer: Nathan Fennel.
Reference tones and preferences
A440 plays bundled reference tones on your device. It does not require an account, access your microphone, record audio, collect personal information, include advertising or analytics, or send your activity to a server. Your last instrument and design preference are saved locally.
External links and support
Privacy and support links open external websites, which have their own privacy practices. If you contact the developer, the information you choose to provide is used to answer your request.
Retention and changes
Local preferences can be removed with the app’s data using your operating system’s storage tools. Backups and restored data are governed by your device settings. This policy will be updated if the app’s practices change.