Liar Liar
Not ideal for absolute beginners or those needing a foolproof solution.
At a glance
3.9 out of 5
Scored by Alex after real useOur verdict
Liar Liar is effective at analyzing body language and voice inconsistencies but falls short on stability and privacy concerns. It's best used by experienced users who can handle potential issues.
✓What it does well
✕Where it falls short
Key features
Questions about Liar Liar
What does Liar Liar do?
Liar Liar is a lie detection tool that analyzes body language and voice inconsistencies. It detects heart rate through subtle facial color changes using remote photoplethysmography, tracks subconscious eye movements, transcribes sessions in real time and produces detailed post-session analysis reports. It runs on the web, macOS and Windows.
How much does Liar Liar cost?
Liar Liar costs $100 as a one-time payment, and there is no free tier. That price includes lifetime access to the desktop application with unlimited usage and updates. Toolio lists it as best for experienced analysts and teams in need of lie detection tools.
Does Liar Liar work on Mac?
Liar Liar runs on macOS, but transcripts are currently unavailable on Mac because of strict system policies, and the vendor says it is working on a solution. The tool also runs on Windows and the web. The reviewer notes that high minimum system requirements can limit compatibility.
Is it legal to use Liar Liar without consent?
The reviewer flags privacy risks with Liar Liar, noting that it requires consent and is illegal to use without permission in many cases. Along with stability concerns, this is why the reviewer recommends it for experienced users who can handle potential issues.
How does Toolio score Liar Liar?
Liar Liar has a Toolio score of 3.9 out of 5, given by Alex after real use on 5 Oct 2026. The reviewer finds it effective at analyzing body language and voice inconsistencies, with an easy setup and real-time feedback during sessions. It has been listed since July 2024.