Intervals

Privacy

Updated 20 September 2026

What the app stores

Progress, lessons, badges, settings, and language stay on your iPhone.

If iCloud Backup is on, that same data can sync through your iCloud account. Nothing is sent to a server we run.

Singing exercises use the microphone to hear your pitch. Audio is processed on the device. We do not upload recordings.

No accounts, no ads, no analytics SDKs, no third-party trackers.

Questions: intervalseartraining@gmail.com