A real one, out loud. You speak, your counterpart answers in a live voice, and the exchange runs at conversational speed — no typing, no menus. The counterpart is software, not a person, but it holds its character under pressure, so you can rehearse the sentence you are dreading against a dominant negotiator before you have to say it to one.

No one on our side ever hears your voice. Your microphone connects directly from your browser to OpenAI, whose model drives the counterpart's voice: the audio never touches our servers, OpenAI receives your IP address with it, in the United States and under OpenAI's own terms. We store the written transcript on servers in Frankfurt, along with the scores and summaries derived from it, so progress can be tracked across sessions. The transcript is deleted automatically 30 days after the session ends, and under Account & privacy you can export everything we hold or delete your account and everything in it yourself — no email, no waiting. If your employer's policy forbids sending work content to a US provider, train with invented figures and fictional company names; the practice works exactly the same.

Yes — any time, in the Stripe customer portal, without contacting us. A card is required to start and the first 3 days cost nothing: cancel within them and you are never charged. Cancel later and access continues to the end of the period you have already paid for; it is never cut off mid-period. During the trial you can work up to five scenarios a day; a subscription lifts that limit. Note that the free trial is granted once per program: if you cancel and subscribe again later, the new subscription bills immediately.

Sessions run in the language you choose — German, English, Spanish or Russian — and the counterpart matches your pace rather than the other way round. You can pause, restart a scenario, or repeat the same opening until it sounds like you mean it; nobody else is in the room and nothing is compared against other users. The awkwardness of the first two minutes is where the learning starts: you are practising, not performing.