Most interview prep tools hand you a list of questions and a list of model answers. That is not where people actually fail. They fail on the second question, when the interviewer picks the vaguest thing they just said and asks them to be specific about it.
Prept is built around that moment. You record a 60-second answer to a prompt, and the feedback goes at the content of what you said rather than your tone or your filler words. Then it asks a follow-up aimed squarely at whatever was thinnest in the answer.
There is a diagnostic round at the start to set a baseline, and three training tracks after that — Foundation, Pressure and Advanced. Pressure Mode runs a longer cross-examination and gives you a debrief at the end. Sessions are saved so you can go back and hear how an answer changed over a few weeks.
Practice covers behavioural questions, situational scenarios and ordinary workplace conversations. Audio never leaves the device.