Privacy policy
Last updated November 13, 2026
The short version
- The app listens to your piano to measure it. The sound is analyzed on your phone and thrown away. It is never recorded and never uploaded.
- Your pianos, tunings and settings stay on your phone.
- There are no ads, no analytics, no tracking and no crash reporter in the app.
- An account is optional. Without one, we hold nothing about you.
- We don’t sell or share your data for advertising.
“TuneLever”, “we” and “us” mean the makers of the TuneLever app and this website. Questions go to support@tunelever.com.
What stays on your phone
- Your pianos, your tuner profile, tuning sessions, Snapshots (whole-piano checks), reminders and settings.
- Reminders are notifications your phone schedules itself. No push service is used.
- The advice record: a short list of the safety advice the app gave you, such as a “call a technician” result or a limit on a pitch raise, with the date and the type and rough age of the piano. It keeps the newest 500 items. It holds no names, no sound and nothing you typed. It leaves your phone only if you share it. You can delete it in the app’s settings.
Your phone’s own backup (iCloud Backup or Android backup) may include the app’s data. That backup goes to your own Apple or Google account. We never see it.
Buying a pass
Passes are sold through the App Store or Google Play. We use RevenueCat to check what you bought. RevenueCat receives the purchase receipt, an app user number (a random one, or your account number if you sign in) and basic device, system and app version details. Your card details go only to Apple or Google. We never see them.
If you sign in (optional)
Signing in with Apple or Google lets you keep your pass on a new phone. When you sign in, we keep:
- the account number Apple or Google gives us for you, and a random account number of our own;
- your pass purchases, as RevenueCat reports them.
We do not keep your email address or name. Sign in with Apple doesn’t share them. Google’s sign-in includes them, and we don’t store them.
Backup
When signed in, you can choose to back up your pianos, tunings and tuner profile to our server, so a new phone can get them back. The backup is kept until you delete it or your account.
Diagnostic reports
If something goes wrong, you can choose to send us a diagnostic report. It is off until you turn it on, and nothing is sent until you send it. It holds the kind of piano and its rough age, each tuning step, what the app measured and showed, what you tapped, and the app version. It never holds sound, names, addresses or a device identifier. Reports you send while signed in are kept for 180 days, or until you delete your account. You can also share a report by email or any app you choose instead.
What we never collect
Sound or recordings, your contacts, your location, your advertising identifier, or anything for advertising. The app has no analytics or crash reporting of its own. If you allow it in your phone’s settings, Apple or Google may pass us crash reports under their own privacy terms.
Our servers and logs
Our server runs on Amazon Web Services in the United States (Oregon).
- Our server’s own logs record the kind of request, its result and how long it took. They never include your IP address, account number, email or what you sent. They are kept for 7 days.
- The load balancer in front of our server and this website keeps access logs with your IP address, the address you asked for and your browser or app name (user agent). They are kept for 7 days.
- To limit abuse, the server counts requests per IP address in memory only. Nothing is written down.
This website
This website sets no cookies and has no analytics, ads or trackers. It loads nothing from other companies. The load balancer logs above apply to it too.
If you email us, for example to hear when the app is out, we use your address only to answer you or to send that one email. Ask us and we’ll delete it.
How long we keep things
| What | How long |
|---|---|
| Account, pass purchases, backup | Until you delete your account |
| Sign-in sessions | 90 days after you last used the app signed in |
| Diagnostic reports you sent while signed in | 180 days, or until you delete your account |
| Purchase notices from RevenueCat | 400 days (so we can answer refund questions), or until you delete your account |
| Server logs and load balancer logs | 7 days |
| Database backups | 14 days, so deleted data is gone from them within 14 days |
Deleting your data
- Deleting the app deletes everything it stored on your phone.
- If you signed in, you can delete your account in the app’s settings, or by emailing us. We delete your purchase record at RevenueCat first, then your account, backup and diagnostic reports from our server. If you used Sign in with Apple, we also tell Apple to disconnect the app.
- Store purchase records kept by Apple or Google are handled under their own policies.
Companies that handle data for us
- Amazon Web Services: hosting for our server and this website.
- RevenueCat: checking pass purchases.
- Apple and Google: the app stores, payments and sign-in.
Links to stores
The app’s tool list links to online stores. A link may carry an affiliate tag, so we may earn a small commission. The app sends nothing to the store; what the store collects is up to its own policy.
Children
The app is meant for adults tuning their own piano. It is not directed at children under 13, and we don’t knowingly collect information from them.
Changes
If this policy changes, we’ll post the new version here and change the date at the top. If a change affects what we keep about you, we’ll also say so in the app.
Contact
Questions or requests about your data: support@tunelever.com.