Privacy

Last updated 1 November 2026

Jam Wave lets musicians play together over the internet. This page says what we keep about you, why, where, for how long, and how to have it removed. It is meant to be read.

Who we are

The company responsible for your information (the “controller” under UK GDPR) is Jam Wave Ltd, company number 17550195, registered in England and Wales at 124-128 City Road, London EC1V 2NX. You can reach us at hello@jamwave.co.uk.

This website

No cookies, no analytics, no advertising, and nothing loaded from anyone else’s servers. Our web server keeps no access log. The download buttons take you to GitHub, which hosts the installers; GitHub sees your network address when you download, under its own privacy policy.

Your sound

Your sound goes from your computer to the other player’s, sealed so that only the two of you can hear it. When two computers cannot reach each other directly, it passes through our relay server, still sealed; we cannot hear it and we do not keep it. We do not record your jams. Recordings you make are saved on your own computer.

Connecting players

To bring players together, a meeting server of ours in Germany passes short sealed notes between people who have invited each other. It sees the network addresses it needs to connect them, holds the notes in memory for about a minute, and cannot read them. A message to a Jam Mate who is offline waits on the server, sealed, for up to 30 days, until their Jam Wave collects it; we cannot read it either.

Accounts and payments

An account holds your email address, the date you made it, your plan (free, trial, monthly, annual or lifetime) and when it started and ends, and a random number for each copy of Jam Wave you have signed in on. There is no password: we email you a sign-in link that works once, for 15 minutes. The email is sent through our email service provider, Resend.

Payments are taken by our payment provider, Stripe. Your card details go to Stripe and never to us. We keep a record that a payment happened (plan, date and Stripe’s reference) so that we can give you the plan you paid for.

Error reports and session figures

Jam Wave sends error reports and session figures to us by default, to find and fix faults, most common first, and to decide what to build next. You can turn either off at any time in My Account; anything waiting to be sent is then deleted from your computer.

What is sent. A random number made for your copy of Jam Wave (not linked to your name, email, computer or account), Jam Wave’s version and your operating system. An error report adds what went wrong and the last few seconds of Jam Wave’s own log, with names, chat, invitation codes, network addresses and your folders taken out. Session figures add when a session began, how long you played, recorded and played with others, how many players, the connection’s quality score and type, and how many problems occurred.

Never your sound or recordings, your name, your chat, your codes or who you played with.

The tuner's game

Jam Wave’s tuner has a hidden game, and in its score mode a run is marked out of 100. When you finish a run, and only then, Jam Wave sends us the mark, the six marks it was worked out from, how long the run took, and the same random number that identifies your copy of Jam Wave (not your name, email or account), so that we can show you where you stand among everyone who has played. Nothing else is sent, and nothing about anybody else is sent back to you: you see your own best, your own position and how many people are on the board. No names are kept or shown, yours included, and no one can be identified from the board. If you never open score mode, nothing about the game ever leaves your computer.

Where, how long and who sees it

• Where. On our servers at Hetzner in Germany (Falkenstein).
• Error reports and session figures: kept 90 days, then deleted. Your network address is used only to limit how often reports may arrive and is not stored.
• The tuner game’s board: one line for each copy of Jam Wave that has finished a run — its best mark, how it was made up, how long that run took and the copy’s random number — kept while the board stands. Tell us your copy’s random number (reports/install in Jam Wave’s data folder) and we will delete its line.
• Your account: kept for as long as you have it. Payment records are kept as long as the law requires us to keep accounts.
• Who sees it. Only Jam Wave’s developer; every look at the reports is logged. The companies that handle some of it for us are Hetzner (the servers), Stripe (payments), Resend (sign-in email) and GitHub (downloads and updates, which see your network address when Jam Wave checks for a new version).

Why we may do this

To give you an account and the plan you chose (to carry out our agreement with you); to take payment and keep accounts (the law); to find and fix faults and decide what to build next, with the off switch above (our legitimate interests); and to keep the service safe from abuse (our legitimate interests).

Your rights

You can ask us to show you, correct or delete what we hold about you, to stop using it for a purpose, or to give it to you in a usable form. Email hello@jamwave.co.uk from the address on your account. Error reports carry no name, so we cannot link them to you ourselves: send us the random number from your Jam Wave’s data folder (reports/install) and we will delete what that copy sent. If you are not happy with how we have handled your information, you may complain to the Information Commissioner’s Office at ico.org.uk.

Changes

When this page changes, the date at the top changes.