Privacy policy

Jamboree is an iPhone app by Dylan Cantor ("I", "me") that turns phones into instruments people can play together. This policy explains what the app does with your data.

The short version

• There are no accounts, ads, analytics or third-party tracking SDKs.
• Playing on your own sends nothing anywhere.
• In a jam with friends, the name you type and the notes you play pass through Jamboree's jam server in real time so the other phones can follow along. They are not stored, sold or shared, unless you opt in to research mode.
• Research mode is optional and off by default. If you turn it on, the notes you play in group jams are saved anonymously, under a random ID, to study how people play together. You can turn it off any time.
• Recordings and your settings are stored only on your iPhone.

What the app uses and why

Jams with other people. When you tap Invite or join with a code, the app connects to Jamboree's jam server (hosted on Cloudflare) over an encrypted connection. It sends the name you chose (or "Player"), which instrument you are on, the jam's settings if you are the host (key, tempo, groove), short timing pings used to keep phones in sync, and a small message each time you play a note (which note, how hard, and when). The server passes these on to the other phones in your jam and keeps them only in memory while the jam is running; nothing is written to disk, and when everyone leaves the jam is gone. No audio or microphone sound is ever sent. Like any internet service, the hosting provider may briefly process technical data such as your IP address to deliver the connection. Jamboree does not use it to identify you.

Research mode (optional). The first time you are in a jam with other people, Jamboree asks whether you want to help with research on how people play music together; you can change your answer any time under Players → Research. It is off unless you say yes. If you turn it on, then while you are in a jam with at least one other person the jam server saves the musical events you play (which note or drum, how hard, and when), the measured network delay of your connection, which instrument you are on, whether you chose to hear the other players through your phone, and the jam's settings (key, tempo, scale, groove). These are labelled only with a random ID created on your phone, which is not connected to your name, your device's identifiers, your Apple ID or your IP address. Your player name is not saved, and players who have not opted in are never recorded. The data is stored with Cloudflare and used by me for my music-technology research, for example to improve how Jamboree keeps players in time over the internet; it may be shared in aggregated or anonymised form (for example in a paper or a portfolio), and it is never sold or used for advertising. Turning research mode off stops any further saving straight away. Because saved sessions cannot be tied back to you, I am not able to pick out which past sessions came from your phone.

Motion. SHAKE and POUR use your phone's motion sensors to play notes. Motion data is read on the phone and never leaves it.

On your device only. The app remembers your name and a couple of settings. A recording you make stays in the app until you close it; it leaves your phone only if you tap Export MIDI and choose where to send it in the iOS share sheet.

Jamboree does not access your microphone, location, contacts, photos, health data or any identifier for advertising.

Children

Jamboree is suitable for all ages. It does not knowingly collect personal information from anyone, including children under 13; the only thing other players see is the name you type, so use a nickname if you like.

Changes

If this policy changes, the new version will be posted here with a new date. If a future version of Jamboree changes what it stores, the policy will say so before that version is released.

Contact

Questions or requests: [email protected].