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LiarLiar.ai - AI Lie Detector & Heart Rate Monitor

Detect deception with AI-powered heart rate and body language analysis.

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Collected: 2025/10/27

What is LiarLiar.ai - AI Lie Detector & Heart Rate Monitor? Complete Overview

LiarLiar.ai, now rebranded as PolygrAI, is a cutting-edge AI tool designed to detect deception by analyzing micromovements, heart rate, and subtle cues in body language. Utilizing advanced technologies like Remote Photoplethysmography (rPPG), it monitors heart rate fluctuations, facial expressions, voice consistency, and body language to provide real-time truthfulness assessments. The tool is compatible with popular video call platforms like Zoom, Google Meet, and Skype, making it versatile for various applications. LiarLiar.ai is ideal for professionals, businesses, and individuals seeking to enhance communication transparency and trust. Its user-friendly interface ensures ease of use, even for those with minimal technical expertise.

LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Interface & Screenshots

LiarLiar.ai - AI Lie Detector & Heart Rate Monitor LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Interface & Screenshots

LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Official screenshot of the tool interface

What Can LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Do? Key Features

Heart Rate Fluctuations

LiarLiar.ai leverages Remote Photoplethysmography (rPPG) to detect subtle heart rate variations by analyzing color changes in the face, which are indicative of blood volume changes with each heartbeat.

Body Language Analysis

The tool analyzes minute body language cues to identify non-verbal signs commonly associated with lying, providing insights that are often missed by the human eye.

Emotion Detection

By decoding facial expressions and micro-emotions, LiarLiar.ai offers a deeper understanding of the emotional state of the speaker, enhancing the accuracy of deception detection.

Voice Consistency

The AI monitors fluctuations and inconsistencies in voice pitch, tone, and speed, which are often indicators of stress or deception, providing additional layers of analysis.

Real-time Transcription and Analysis

LiarLiar.ai provides real-time transcription of conversations coupled with truthfulness estimation, offering instant insights into the honesty of the interaction as it unfolds.

Automatic Recording and Reporting

The tool records sessions and generates comprehensive reports post-analysis, detailing heart rate fluctuations, body language, and other metrics, which are invaluable for review and record-keeping.

Best LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Use Cases & Applications

Professional Interviews

HR professionals can use LiarLiar.ai during interviews to assess candidate honesty, ensuring more reliable hiring decisions by analyzing verbal and non-verbal cues.

Legal and Law Enforcement

Legal teams and law enforcement can utilize the tool during interrogations or depositions to gauge the truthfulness of statements, aiding in investigations and legal proceedings.

Business Negotiations

Business professionals can leverage the tool during negotiations to detect deception, ensuring transparency and fostering trust in high-stakes discussions.

Personal Relationships

Individuals can use LiarLiar.ai in personal interactions to better understand the honesty of their counterparts, enhancing communication and trust in relationships.

How to Use LiarLiar.ai - AI Lie Detector & Heart Rate Monitor: Step-by-Step Guide

1

Select a video feed by clicking the 'Start' button and choosing the video you want to analyze. The tool is compatible with various platforms like Zoom, Google Meet, and local videos.

2

Monitor the real-time data processing and analytics displayed on your screen, which includes heart rate, body language, and voice consistency metrics.

3

Save and review the session. After each analysis, LiarLiar.ai provides a video recording and an interactive report for in-depth review and future reference.

LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Pros and Cons: Honest Review

Pros

Comprehensive analysis combining heart rate, body language, and voice cues.
Real-time feedback and transcription for immediate insights.
User-friendly interface suitable for both tech-savvy and novice users.
Compatible with major video platforms, enhancing versatility.
Automatic recording and reporting for detailed review and record-keeping.

Considerations

Not 100% accurate, as with any lie detection tool.
Currently limited to desktop use (Windows and Mac), with no mobile version yet available.
Requires user consent for ethical and legal use, which may limit some applications.

Is LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Worth It? FAQ & Reviews

LiarLiar.AI uses advanced AI algorithms to analyze real-time video feeds, detecting micro facial expressions, heart rate fluctuations, and subtle changes in body language to assess truthfulness. The analysis occurs in real-time and provides immediate feedback.

While no lie detection tool can guarantee 100% accuracy, LiarLiar.AI offers a high level of accuracy by analyzing multiple cues, including micro facial expressions, body language, and heart rate fluctuations, to provide a comprehensive assessment.

Yes, LiarLiar.AI is compatible with any video calling software, such as Zoom, Google Meet, Teams, and Skype. It can also analyze YouTube videos and local video files.

Currently, there are no specific laws governing the use of tools like LiarLiar.AI. However, it is illegal to record or analyze someone’s video call without their consent. Always ensure you have permission before using the tool.

All analyzed videos are processed and stored in a directory of your choice on your computer. LiarLiar.AI does not have access to your data, ensuring privacy and security.

Currently, LiarLiar is designed for Windows and Mac desktop systems. A mobile version is in development and will be released soon.

How Much Does LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Cost? Pricing & Plans

Free

$0
Basic lie detection
Limited analysis reports
Compatible with major video platforms

Pro

$29/month
Advanced lie detection
Full analysis reports
Priority support
Higher accuracy

Enterprise

Custom
Custom integrations
Dedicated support
Bulk analysis
API access

LiarLiar.ai - AI Lie Detector & Heart Rate Monitor Support & Contact Information

Last Updated: 10/27/2025
Data Overview

Monthly Visits (Last 3 Months)

2025-07
3100
2025-08
1570
2025-09
9125

Growth Analysis

Growth Volume
+7.6K
Growth Rate
480.90%
User Behavior Data
Monthly Visits
9125
Bounce Rate
0.6%
Visit Depth
2.4
Stay Time
0m
Domain Information
Domainliarliar.ai
Created Time7/29/2023
Domain Age821 days
Traffic Source Distribution
Search
27.3%
Direct
56.1%
Referrals
5.7%
Social
9.9%
Paid
0.9%
Geographic Distribution (Top 5)
#1US
100.0%
#2-
-
#3-
-
#4-
-
#5-
-
Top Search Keywords (Top 5)
1
lie detector ai
110
2
voice lie detector online for video
80
3
liar liar ia
30
4
ai lie detector
240
5
lie detector
11.3K