Last updated: March 9, 2026
These Terms of Service govern your access to and use of Bjorn, a language-learning service operated by Musefuel AB (company registration number 559080-8720) ("Bjorn," "we," "our," or "us").
By creating an account, accessing the service, or using any Bjorn feature, you agree to these Terms. If you do not agree, do not use the service.
Bjorn is intended for users who are at least 16 years old. You may not use the service if you are under 16.
If you use Bjorn on behalf of a business or other organization, you represent that you have authority to bind that organization to these Terms.
Bjorn provides language-learning features that may include AI conversations, text corrections, pronunciation review, voice features, flashcards, grammar practice, saved study items, daily lesson state, and media-based learning experiences such as YouTube integrations.
Features, pricing, limits, and availability may vary by platform, subscription tier, storefront, territory, and device.
You must provide accurate and current information when creating an account and keep your account credentials secure.
Bjorn may offer free features, paid subscriptions, and optional add-on purchases such as extra credits.
Subscriptions renew automatically unless canceled before renewal under the rules of the purchase source.
Refunds and cancellations depend on where the purchase was made.
Deleting your Bjorn account does not automatically cancel an Apple subscription. If you subscribed through Apple, you must also manage or cancel that subscription in your Apple subscription settings.
Some paid features may be described as generous or effectively unlimited for normal learning use, but all features remain subject to technical, abuse-prevention, and fair-use limits.
You may not use Bjorn to:
Bjorn relies on third-party providers for important parts of the service, including AI generation, transcription, pronunciation assessment, hosting, analytics, payments, email delivery, and platform billing.
These providers may include OpenRouter, ElevenLabs, Microsoft Azure, Apple, RevenueCat, Polar, Amazon Web Services, Google services such as Google Sign-In and the YouTube Data API, and Vercel Analytics.
AI-generated output can be inaccurate, incomplete, unexpected, or inappropriate. Bjorn is an educational tool, not a source of professional advice or guaranteed factual accuracy.
You retain ownership of the content you submit to Bjorn, such as saved words, notes, flashcards, lesson input, pronunciation submissions, and other learning materials.
You grant us a limited, non-exclusive, worldwide license to host, process, reproduce, adapt, transmit, and store that content only as needed to operate, secure, improve, and support the service for you.
Bjorn, our branding, our software, and our original service content remain our property or the property of our licensors.
Our handling of personal data is described in our Privacy Policy, which forms part of these Terms.
You may stop using Bjorn at any time. We may suspend or terminate access if you violate these Terms, misuse the service, create legal risk, or threaten service integrity or other users.
You may request account deletion through available account settings flows or by contacting hey@heybjorn.com. Some information may still be retained where required for billing, tax, accounting, security, fraud prevention, dispute resolution, or other legal reasons.
We may modify, improve, suspend, or discontinue parts of Bjorn at any time. We do not guarantee uninterrupted availability or error-free operation.
We are not responsible for outages or failures caused by third-party platforms or providers on which the service depends.
To the maximum extent permitted by law, Bjorn is provided "as is" and "as available" without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, and non-infringement.
To the maximum extent permitted by law, Musefuel AB and its affiliates, officers, employees, contractors, and licensors will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for loss of profits, revenue, goodwill, use, or data, arising from or related to your use of Bjorn.
Nothing in these Terms excludes liability that cannot be excluded under applicable law.
These Terms are governed by the laws of Sweden, without regard to conflict-of-law rules. Mandatory consumer protection rights that apply in your country of residence remain unaffected where required by law.
We may update these Terms from time to time. If we make material changes, we may notify you through the service, by email, or by posting an updated version with a new effective date. Continued use after the updated Terms take effect means you accept them.
Musefuel AB (559080-8720)
Email: hey@heybjorn.com