Last updated: June 1, 2026
These terms govern your use of the Jam-da app, provided by Väder AB (“we,” “us”). By downloading or using the app you agree to these terms and our Privacy Policy.
Jam-da is a tool for folk musicians: collect tunes, practise with sheet music and recordings, and find shared repertoire when you play together. The app is local-first — your material lives on your own device.
We grant you a limited, revocable, non-exclusive and non-transferable right to use Jam-da for personal use, in accordance with these terms and the rules of the App Store and Google Play.
The app and its design, code and graphics belong to Väder AB. You may not copy, sell, decompile, or build competing products based on the app.
The built-in catalog draws on tunes from folkwiki.se and other open sources. It is mostly traditional folk music. Rights to individual notation, arrangements or recordings belong to their respective authors or sources; we link back to the source where possible. If you reuse the material, you are responsible for respecting the source’s licence.
What you create in the app — recordings, playlists and notes — is yours. We make no claim to it. When you choose to share something through the app’s jam or sharing features, you are responsible for having the right to share that material, and you grant recipients access to what you share. Do not upload illegal or infringing content to the sharing service.
You may use Jam-da to make copies of copyrighted material — such as notation or recordings — only for your own private use, in line with the private-copying exception under Swedish copyright law (Section 12 of the Copyright Act, lag 1960:729). Such copies may not be used for commercial or professional purposes.
Private copying does not cover distribution. You may not share, distribute or otherwise make copyrighted material available to others — for example through the app’s jam or sharing features — unless you hold the rights yourself or have the rightsholder’s permission. Uploading a copy to a shared jam or set counts as distribution, not private copying. You are responsible for ensuring that what you share is permitted.
You agree not to:
The app is free. You may choose to support development with a voluntary donation via the App Store or Google Play. Donations are voluntary, unlock no extra features beyond a thank-you, and are generally non-refundable — except as required by mandatory law or the platform’s own rules. If you are a consumer in the EU/EEA, you generally have a 14-day right of withdrawal for purchases of digital content.
The app may link to or use third-party services (such as Spotify, YouTube, Apple, Google and Cloudflare). We are not responsible for their content or services, and your use of them is governed by their own terms.
The app is provided “as is,” to the fullest extent permitted by law, without warranties of any kind. We cannot guarantee the app is always error-free or available. This does not affect the mandatory rights you have as a consumer.
To the fullest extent permitted by law, Väder AB is not liable for indirect damages, loss of data, or lost profits arising from use of the app. Please back up your material regularly.
These terms are governed by Swedish law. If you are a consumer in the EU/EEA, this does not affect the mandatory consumer-protection rules of your country of residence.
Jam-da is suitable for a general audience. If you are below the age of digital consent in your country (16 in Sweden), a parent or guardian should review and agree to these terms on your behalf.
You also agree to the terms of whichever store you download the app from. For the iOS app, these terms are between you and Väder AB only — not Apple. Apple has no obligation to provide support or to handle any claim relating to the app, but is a third-party beneficiary of these terms and may enforce them. The same applies to Google for the Android app.
We may update these terms. Material changes will be announced in the app or by updating the date above. Continued use means you accept the updated terms.
Questions about these terms? Contact us at [email protected].