This policy covers the Fretboard Intervals app for iPhone and its pages on this website. The app is published by Chris Paul. Questions about this policy go to fretboardintervalseu@proton.me.
The short version
- You can play every level without an account. Your scores stay on your phone.
- An account is only for the online leaderboard. It uses Sign in with Apple, and the app does not ask Apple for your name or email address.
- The app has no ads, no analytics and no tracking, and it contains no code from advertising or analytics companies.
- You can delete your account and everything stored with it from inside the app.
If you play without signing in
Your personal bests and round results are saved on your phone and are not sent to the game server. They are removed when you delete the app.
The app may still contact the game server, for example to check whether you are signed in. Those requests are recorded in the server logs described below.
If you sign in for the leaderboard
The game server stores the following for your account.
| What | Why |
|---|---|
| An account identifier that Apple creates for this app. It is not your Apple Account email address, and it cannot be used to look you up in other apps. | To recognize you when you sign in again |
| Your nickname, which you choose or the app generates | To show you on the leaderboard |
| Your connected rounds: the instrument and level, each question and answer, the times they were received, and your scores | To score rounds on the server and keep your best score for each level |
| An encrypted sign-in token from Apple and a record of your sign-in sessions | To keep you signed in, and to cancel the app’s Apple authorization when you delete your account |
| A record that your App Store purchase was verified with Apple. The server checks the receipt and keeps a fingerprint of it and the result. It does not keep the receipt. | To limit the leaderboard to people who own the app |
| An identifier and a security key that your phone creates for this copy of the app | To confirm that requests come from a genuine copy of the app |
The app does not ask for your name, email address, age, contacts, photos or location, and it does not use the microphone.
What other players can see
The leaderboard shows your nickname, your best score for each level, the instrument you played and your rank. Pick a nickname that doesn’t identify you if you want to stay anonymous. Nothing else about your account is shown to other players.
Server logs
Like most servers, the game server and this website record each request they receive: the IP address, the date and time, the address requested and the name of the app or browser. These logs are used to keep the service running and to block abuse, and they are deleted after about two weeks. The game server also keeps a short-lived record of recent requests, by account or by IP address, to limit how fast anyone can send them. That record is cleared within about an hour.
Who else is involved
- Apple provides Sign in with Apple, confirms App Store purchases and confirms that the app is genuine. The server sends Apple only what those checks require.
- Amazon Web Services hosts the game server and this website in the United States.
Your information is not sold, and it is not shared with advertisers or anyone else.
How long it is kept and how to delete it
Account information is kept until you delete your account. To delete it, open Leaderboard / Account in the app and choose Delete account. This permanently deletes your account identifier, nickname, rounds, scores and sign-in records from the server, and it cancels the app’s Sign in with Apple authorization. Scores saved on your phone remain until you delete the app.
If you can’t use the app to do this, email the address above from any address and include your nickname.
This website
The app’s pages on this website (the app page, the support page and this page) set no cookies and load nothing from other companies.
Changes
If this policy changes, the new version will be posted on this page with a new effective date.