Privacy Policy

Last updated: July 16, 2026

Stillune is a tinnitus habituation education and relaxation companion. Because tinnitus is personal, the app is built so that your data does not leave your device. There is no account, no sign-in, and no server of ours. This document explains exactly what the app handles, where it lives, and the one thing that does use the network. The short version: no email, no name, no analytics — your journal stays on the phone.

A note on health: Stillune is not a medical treatment, diagnosis, or hearing care, and nothing it stores or produces is medical advice. Tinnitus can have underlying medical causes — please see a doctor or audiologist, especially for sudden or one-sided ringing.

1. No account, no server

Stillune never asks for your email address, name, or password — there is no sign-in of any kind, anonymous or otherwise. We operate no backend: nothing you do in the app is stored on a server of ours, because we don't have one.

2. What stays on your device

• Spike journal entries and notes. Intensity, trigger chips, and anything you write stay on your iPhone.
• Your pitch profile. The tinnitus frequency you match per ear is stored locally.
• Scores and progress. Program progress, weekly check-in scores, and streaks are stored locally.
• Weekly patterns. The weekly trigger-pattern summary is computed on your phone from your own journal — nothing is sent anywhere to produce it.
• Saved mixes. Sound mixes you name and save are stored locally. Sharing a mix creates a link on your device that you choose to send.
• HealthKit sleep data. Read on-device only, for the optional sleep correlation — see section 4.
• All soundscape audio. Every soundscape is generated on-device; no audio is downloaded from or uploaded to any server.

3. The only network traffic: purchases

The single thing in Stillune that uses the network is subscription processing:

• Apple StoreKit processes Stillune Premium through your Apple ID, under Apple's own privacy terms.
• RevenueCat, Inc. validates purchase receipts and manages the Premium entitlement on our behalf. RevenueCat receives your purchase history, a random anonymous app identifier, and basic device information (model, OS version, locale). It never receives your name, email, journal, scores, pitch profile, or any Health data — the app has none of your identity to give.

Beyond this, the app makes no network requests: no analytics, no advertising, no tracking, no content downloads.

4. HealthKit sleep data

• With your permission, Stillune reads your sleep hours from HealthKit to correlate sleep with your spike journal — entirely on-device.
• HealthKit data is never uploaded to any server, ours or anyone else's.
• HealthKit data is never used for advertising or marketing, and never sold.
• The sleep correlation is optional; you can decline or revoke Health access at any time in iOS Settings.

5. No analytics

Stillune sends no usage analytics of any kind. Which screens you open, what you log, and how you use the app are not transmitted to us or to anyone else.

6. Device permissions

• HealthKit (read) — sleep hours, correlated on-device only, never uploaded.
• Notifications — optional local reminders, scheduled on your device.
• Background audio — keeps soundscapes and the sleep timer playing while the screen is off.

7. Your backup file

You can export a backup of your data from Settings. The backup file contains your journal entries — including free-text notes and, if you connected Health, the sleep hours attached to each entry — plus your weekly check-in scores and lesson progress. The file is created only when you tap Export, and you choose where it goes. Treat it as you would any private document.

8. Deleting your data

"Delete all my data" in Settings erases everything the app stores on your phone: journal entries, notes, scores, pitch profile, saved mixes, and settings. There is no server copy to delete — none exists. One non-personal flag survives: the record that your single free session has been used, kept so the free session cannot be reused; it contains nothing about you. Your subscription itself is Apple's record — manage or cancel it in your Apple ID settings.

9. Your rights and controls

• Decline or revoke HealthKit access in iOS Settings
• Export your data from inside the app
• Delete all your data from inside the app
• Turn reminders off in the app or in iOS Settings
• Cancel your subscription via the App Store

Because Stillune keeps your data on your device and we hold no copy, access, correction, and deletion are all in your hands, immediately. For anything else — including rights under GDPR or Türkiye's KVKK — contact us below; the data controller is OzTech App Studio, Istanbul, Türkiye.

10. Updates to this policy

We update this policy when there's a material change. The update date appears at the top of this page.

11. Contact

For privacy questions, requests, or to exercise any of your rights: support@oztechapps.net

Stillune is developed by OzTech App Studio in Istanbul, Türkiye.