Session-Based Authenticity Verification

Verify video calls with your instincts and your people

GutCheck gives you the signal. SquadCheck shows whether everyone else caught the same moment.

Keep the same clean flow across the product: analyze the call, spot what feels off, and if needed send it to your friends for instant consensus with SquadCheck™.

Start a GutCheck See SquadCheck
NEW!
SquadCheck™

See if your friends noticed the same thing

If something feels off, send it to your friends.

They watch independently. They react in real time.
You see if everyone noticed the same moment.

⚠️ 4 out of 5 friends flagged this as suspicious

All reactions spiked at 0:42

Try SquadCheck

The Problem

Fake and manipulated video calls are already here

$1.3B lost to romance scams in 2022

FBI

Online dating fraud continues to rise

Norton

Real-time video impersonation tools are now accessible

WIRED

Built for the moment something feels off

A video call can look real and still feel wrong.

Traditional "prove it" tests don't catch that.
GutCheck is built for that moment.

You don't need proof. You need clarity.

How It Works

Two signals. One answer.

GutCheck analyzes both: your reaction and the video itself. When they match, confidence is high. When they don't, something's wrong.

🔍

Step 1

Install GutCheck

Free Chrome extension. One click to start analyzing video calls in real time.

👁

Step 2

Watch the video or live call

GutCheck captures two signals: (1) Your biometric response, including facial micro-expressions, attention shifts, emotional reactions. (2) Behavioral authenticity markers in the video, including blink patterns, timing, movement consistency.

✅

Step 3

Get your result, then compare it

LIKELY REAL / UNCERTAIN / LIKELY INAUTHENTIC

When both signals agree, confidence is high. When they diverge, something doesn't line up.

Send it to your friends with SquadCheck™ and see if they noticed the same moment.

That's when a second opinion matters most. Try SquadCheck

Group Consensus

See what others saw

Share a clip. Your friends run their own analysis.
Compare results side-by-side and spot exactly when suspicion spikes.

3 of 4 friends flagged the same moment

Consensus: likely inauthentic

Trust your instincts, and verify them with others.

When multiple people react at the same point, it stops being a feeling. It becomes a signal.

Why It Works

Your body detects what your eyes miss

Humans have evolved over thousands of years to detect subtle inconsistencies in behavior, often before we can explain why.

GutCheck taps into that system.

By measuring your real-time reactions and comparing them to the video itself, it surfaces signals traditional analysis misses.

And when multiple people react the same way at the same moment, that pattern becomes impossible to ignore.

GutCheck is a real-time video authenticity detection tool that analyzes biometric response, facial micro-expressions, and behavioral patterns to help identify manipulated or synthetic video calls. It works on live video calls and recorded content, providing instant feedback on whether a person appears authentic, uncertain, or potentially inauthentic.

Trust

Built for signal quality, privacy, and real-world use

🛡

On-device processing: your camera and audio data never leave your device

🔒

No raw video stored — analysis happens locally

🧠

Built on behavioral analysis, micro-expression research, and response pattern detection

🎯

Designed for real decisions — dating, business calls, and high-trust conversations

Pricing

Start free. Stay protected.

Free

Free

Get started instantly

  • 3 analyses included
  • Basic verdict (Real / Uncertain / Inauthentic)
  • Works on any video or call
Add to Chrome (Free)

Premium

$19.99/mo

or $149/year (save 38%)

  • Unlimited personal analyses
  • SquadCheck™ — group consensus from friends
  • Full biometric dashboard with all signals
  • Shareable video analysis links
  • Earn referral credits (12 friends = free year)
  • Priority updates & support
Unlock Premium

💳 Secure payment via Stripe. Cancel anytime.

Use Cases

Real people. Real situations.

Women & Dating Safety

"I sent my match's video to my friends. All four of us caught the same weird moment."

  • Verify matches before meeting
  • Check video calls for authenticity
  • Get second opinions on red flags
  • Avoid scams early

Men & Catfish Prevention

"Something felt off. Ran it through GutCheck. Turned out she was reading from a script."

  • Confirm the person is real
  • Detect fake profiles and scams
  • Validate video matches photos
  • Avoid wasted time and money

Stop guessing, check it with your friends

Send it to your friends and see if they noticed the same thing.

Add to Chrome (Free)