Privacy policy and support

Support

Doppler Trainer is a sonar operator training app for iPhone and iPad.

Questions, bugs, or TestFlight feedback: marc.ennis@gmail.com

Privacy policy

This policy describes how Doppler Trainer handles information. The short version: the app does not collect personal data and does not send training data off your device.

Who we are

Doppler Trainer is published by Marc Ennis. Contact: marc.ennis@gmail.com

What the app stores

Everything below stays on your device. It is not uploaded to a server, not shared with third parties, and not used for advertising or tracking.

• Ear-training scores (correct answers and attempts)
• An optional callsign for the local tactical leaderboard
• Local tactical leaderboard results
• Display preference for waterfall vs spectrum

You can remove this data by deleting the app.

What we do not collect

• No account or login
• No analytics or crash reporting services
• No advertising or tracking identifiers
• No location, contacts, photos, or microphone recordings sent anywhere
• No third-party SDKs that collect data

Tones you hear are generated on the device. The microphone is not used.

Children

Doppler Trainer is not directed at children under 13 and does not knowingly collect personal information from children.

Changes

If this policy changes, the date at the top of this page will be updated.