Terms of Use
Last updated: November 14, 2026
These terms apply to LangTune: the Chrome extension, the Android app and this website. By using them you agree to these terms. If you do not agree, please do not use LangTune.
The service
LangTune helps you practice English with YouTube videos: looping parts of a video, reading captions and saving words as flashcards, with your data synced between your devices. It is free for now. We may add paid features later; if we do, we will say so clearly before you are charged for anything.
Your account
You sign in with Google. You are responsible for what happens under your account. Tell us if you think someone else has access to it.
Using LangTune
- Use it for your own learning and follow the law and YouTube's Terms of Service.
- Do not try to break, overload or reverse-engineer the service, or use it to harm others.
- Do not use automated means to create accounts or collect data from our service.
Your content
The words, meanings, examples and checkpoints you save are yours. You give us permission to store and process them only to run the service for you, as described in our Privacy Policy. The videos and captions belong to their owners and come from YouTube; LangTune does not host or copy them.
Not affiliated with YouTube or Google
LangTune is an independent product. YouTube and Google are trademarks of Google LLC.
No guarantees
We work to keep LangTune useful and available, but it is provided "as is", without warranties of any kind. Example sentences are generated by AI and can contain mistakes, so check them. To the extent the law allows, we are not liable for indirect or consequential losses, or for loss of data; keep your own copy of anything you cannot afford to lose.
Changes and ending
We may change or stop parts of the service, and we may update these terms; the date above shows the latest version. You can stop using LangTune at any time and ask us to delete your data (see the Privacy Policy). We may suspend accounts that break these terms.
Governing law
These terms are governed by the laws of Brazil. This does not take away any consumer rights you have where you live.