Terms of use

Who you agree with

Langvie is operated from Vienna, Austria. Using the app or this site means these terms apply between you and Langvie. If you do not accept them, do not use Langvie.

What Langvie is

Langvie turns a film's subtitle vocabulary into flashcards, each one carrying the line the word was spoken in. It installs to your home screen from the browser, so no App Store or Google Play account stands in the way.

It is free. There is no paid tier, no trial that expires, and no payment step. That could change later, and if it does, whatever you have already built stays reachable to you.

Your account

You do not need one. An account buys sync between devices and a schedule that survives a cleared browser.

If you make one, use an email address you control, keep it to one account per person, and do not share the login. What happens under your account is your responsibility, so tell us if you think someone else has got in.

What you may not do

• No scripted clients. Do not point scrapers or automated clients at the app or its API. The film indexer is rate limited and exists to build the catalogue.
• No reaching into other accounts. Do not try to read or write another user's rows, or to work around row level security.
• No reselling the decks. Do not republish the vocabulary lists as a product of your own.
• Nothing illegal where you are.

Breaking any of these can cost you the account, and without notice first if the abuse is still running.

Films, posters and vocabulary

Langvie does not host films, stream them, or link anywhere that does, and it never hands you a subtitle file. What it stores is a vocabulary list drawn from a subtitle track, plus one short line of context per word, which is the smallest quotation a flashcard needs.

Film titles, posters and metadata belong to their rights holders and appear here to identify the film. Subtitle tracks come from OpenSubtitles under its own terms.

What we do not promise

A word's level is an estimate, worked out from how common the word is in German. So it sorts a film's difficulty honestly, and it cannot tell that Fall is A2 as a case and B2 as a legal term. Read the levels as a filter, not as a placement test.

Translations on the back of a card are machine made and checked by rule rather than by a person, so some of them will be wrong.

Otherwise Langvie is offered as it stands. Nothing here promises that it stays available, that a film stays in the catalogue, or that your progress survives a failure at Supabase or Vercel.

If something goes wrong

Liability runs as far as Austrian law allows and no further. Nothing here limits liability for death or personal injury, for intent or gross negligence, or under the Produkthaftungsgesetz.

Past that point, and so far as the law permits, we are not liable for indirect loss or for lost data. That limit also covers loss nobody could have foreseen when you started using a free flashcard app.

If you are a consumer in the European Union, your statutory rights stand whatever this section says.

Ending it

Stop whenever you like. Sign out, drag the app off your home screen, and email us if you want the account and its rows deleted. The privacy policy explains how that works.

From our side, an account that breaks the conduct section can be suspended or closed, and Langvie itself can stop running. If it is shutting down, notice goes to the email on your account with time to export your deck.

Law and courts

Austrian law governs these terms, with the UN Convention on Contracts for the International Sale of Goods excluded.

For a business user, the courts of Vienna have jurisdiction. If you are a consumer, that does not take away the mandatory protection of the law where you live. You keep the right to bring a claim in your own courts.

Changes and questions

The date at the top records the last change. Anything material appears in the app before it takes effect, and continuing to use Langvie after that counts as accepting it.

Write to olesia.borysova@gmail.com about these terms, a takedown or an account closure. The companion document is the privacy policy.