LiarLiar

LiarLiar.AI analyzes live or recorded video to flag possible deception, combining several behavioral signals rather than relying on a single cue. It uses remote photoplethysmography to estimate heart rate from subtle color changes in a person's face, tracks facial expressions and body language for micro-movements, and evaluates voice consistency and language patterns during a conversation. The tool also produces a real-time transcript, records the session automatically, and generates a report afterward summarizing the physiological and verbal cues it detected. It is designed to plug into video calls rather than replace them, working with Zoom, Google Meet, Skype, and Microsoft Teams, as well as with locally saved video files. A separate 'Interviewer' mode supports one-way interviews, where a subject responds on their own and the tool produces psychological, linguistic, visual, and vocal scoring against criteria the user can customize. It is aimed at people who want an assessment of honesty in professional interviews, investigative conversations, or personal discussions. The company states plainly that no lie detection tool can guarantee full accuracy, and the product itself is in the middle of a rebrand from LiarLiar.AI to PolygrAI, described on its own site as bringing fewer bugs, more features, and better performance. It currently runs on Windows and Mac desktops, with a mobile version still in development, and detailed pricing is on a separate page.