Privacy Policy
Last updated: September 29, 2026
Trombone Tuner: Slide Coach ("the App") is published by Bulpara Inc ("we", "us", "our"). The short version: the App records nothing, collects nothing, sends nothing, and has no account.
1. Microphone
With your permission, the App listens to the microphone to measure the pitch of the note you play. Sound is analysed on your iPhone as it arrives and immediately discarded. The App never records, saves or uploads audio.
2. Data stored on your device
- Preferences: your instrument, A4 reference, note names, units, intonation setting and theme.
- Practice data: the slide position you prefer for each note, and your best long-tone score per note.
- Free-tier counters: how many free Slide Coach sessions and long tones you've used, and whether Pro is unlocked.
None of it leaves your iPhone. Deleting the App deletes all of it.
3. No analytics, no trackers, no network
The App contains no analytics, advertising SDKs, crash reporters or third-party trackers, shows no ads, and makes no network requests of its own. We operate no servers that hold user data.
4. Purchases
Pro is a one-time purchase sold and processed by Apple through the App Store. Apple tells the App whether it's unlocked; we never see your payment details or Apple ID.
5. Children
The App is suitable for students of any age. It collects no information from anyone, including children.
6. Changes
If this policy changes, the new version will be posted here with a new date.