---
title: "Lie Detector by the Expression - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Discover this lie detector that tracks the face expressions to know when someone tells a lie. Based in real psychology studies.   "Lie Detector by the Expression" is based in live real tracking of the"
---

# Lie Detector by the Expression — United States
> Discover the Lie and truth

![Lie Detector by the Expression App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/da/58/28/da58280e-d1cb-b32e-16bf-50149b4a986c/AppIcon-0-1x_U007emarketing-0-0-GLES2_U002c0-512MB-sRGB-0-0-0-85-220-0-0-0-7.jpeg/400x400bb.jpg)

**Developer:** [Jorge Gregorio Martin Bello](https://apptail.io/developer/jorge-gregorio-martin-bello-QOi)
**Category:** Utilities
**Rating:** 4.2/5 (60 ratings)
**Price:** Free
**Bundle ID:** com.appreciate.verum
**Store:** Apple App Store
**Country:** United States
**Version:** 1.6 (released 2018-11-25)
**Original Release:** 2018-09-07

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1418456153)
**AppTail Page:** [https://apptail.io/app/lie-detector-by-the-expression-zZpd/united-states](https://apptail.io/app/lie-detector-by-the-expression-zZpd/united-states)

## Lie Detector by the Expression Description
Discover this lie detector that tracks the face expressions to know when someone tells a lie. Based in real psychology studies. 

"Lie Detector by the Expression" is based in live real tracking of the face.

This app is able to track the eyes movement, lips and face shape to compare with nine different expressions that unconsciously make people when they lie.

Instructions:
Record the face of the user you want to track face and press record button.
Ask him a question while you are recording the face.
Press Stop button when the answer finishes and you will get instantly the result: Lie or True.

Of course the result depends on the ability of user to keep a neutral face while answering.

The result is not totally reliable, but is is based in real psychology studies. 

The expressions that are studied to determine the result are:

1) Eyes darting: People´s eyes usually dart back and forth when they feel uncomfortable.

2) Rapid Blinking: When people are stressed about lying, they may blink five or six times in rapid succession.

3) Closing eyes for more than one second at a time: People often close their eyes for more than a second at a time when they are lying.

4) Looking up to the right: Right-handed people usually look up to their right when they are about what they saw.

 5) Looking directly to the right: Right-handed people look directly to their right when lying about what they heard.

6) Looking down to the right: Right-handed people often look down to their right when they are lying aout smells or sensations.

7) False smile: A false smile do not affect the eyes and it´s just done with the mouth.

8) Pursed lips: People may purse their lips to counteract the dry mouth that comes when lying.

9) Head shaking: If people shake their heads while saying something, they have just denied their statement.

Download now "Lie Detector by the Expression" and do not try lie!

## Lie Detector by the Expression Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple128/v4/19/05/a3/1905a3f1-fdb6-4396-0b25-602f72b79d3e/pr_source.jpg/2048x2732.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/3b/cc/61/3bcc610b-11d8-6df7-6cfc-302537bc26a0/pr_source.jpg/2048x2732.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/0a/07/62/0a07623c-8467-674f-c242-b041707671f3/pr_source.jpg/2048x2732.png)

## Lie Detector by the Expression Rating Breakdown in United States
- 5 stars: 41 (68%)
- 4 stars: 7 (12%)
- 3 stars: 4 (7%)
- 2 stars: 0 (0%)
- 1 stars: 8 (13%)

## Lie Detector by the Expression Reviews in United States

### ***** "It proves to be a strong asset"
The truth is as of now it has been completely accurate I know because I had it tested on myself, it was on the money.!!!!
-- kkricket, 2022-02-21

### ***** "Accurate."
I tried it on my brother when he said he was going to give the candy cane back to my baby brother but he was wrong and the lie detector said he was wrong.
-- hygryhyrhythyfgfyfufhfyfyfhfh, 2021-12-11

### ***** "Awesome"
It’s worked when I tried it so far so good no complaints
-- babygirl421979, 2021-06-19

### ****- "Surprised!!"
Pretty good app!  Thought it was just a game....until it caught me in a lie!!
-- Gollito33, 2020-12-21

### ***** "The Truth!!"
It works, it really works! I have tried it on 5 different people and it did what it says it would!
-- jmoney1954, 2020-12-13

### ***** "Great app"
Really fun ruined a few friends marriages caught my dog lying and got out of a ticket all hokes aside like this app a lot would recommend
-- tonykfx700, 2020-03-15

### *---- "THESE REVIEWS ARE ALL FAKE plz read 👎🏻😡"
I download this thinking it was true from all the good reviews. They all rated 5 star and contained of 1 o 2 words like “ great” or  “love this” but there was 1 bad one... I ignored the bad one and downloaded it. I tried it on my brother and it was accurate on lie I asked him did you lie and he confessed. I got excited and tried it on me. He asked the question and it said lie but it was TRUE. I thought “ maybe it heard it wrong” so we tried a different question and again it said LIE. So I got very angered and offloaded it. EVERY REVIEW IS PROBABLY BY THE SAME PERSON OR FAMILY!!!!!!!!!!!  Unless there is a professional at your house to give a lie test, every app is fake even the $ ones! So plz stop wasting time looking for a “real” lie detector app and hire a professional if you want one so bad. Thank you and plz take my advice
-- barbra and denny, 2020-02-03

### ***** "This app is amazing"
When I tried this app myself I really liked how it can detect if we our lying or telling the truth
-- dddfffgrhfjvhrjrnrv, 2020-01-08

### ***** "Amazing"
Technology is amazing! Self administered lie detectors. What’s next?!?
-- BigSwo76, 2019-12-28

### ***** "Lie detector"
Very interesting and fun to play around with. Like the fact that it is based on science.
-- Bru-Man, 2019-12-06

[View all Lie Detector by the Expression reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)

## Lie Detector by the Expression In-App Purchases
| Item | Price |
|------|-------|
| Unlimited time | $1.99 |




## Lie Detector by the Expression Available In
- [United States](https://apptail.io/app/lie-detector-by-the-expression-zZpd/united-states)
- [Canada](https://apptail.io/app/lie-detector-by-the-expression-zZpd/canada)
- [Australia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/australia)
- [New Zealand](https://apptail.io/app/lie-detector-by-the-expression-zZpd/new-zealand)
- [India](https://apptail.io/app/lie-detector-by-the-expression-zZpd/india)
- [China](https://apptail.io/app/lie-detector-by-the-expression-zZpd/china)
- [Saudi Arabia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/saudi-arabia)
- [Philippines](https://apptail.io/app/lie-detector-by-the-expression-zZpd/philippines)
- [Pakistan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/pakistan)
- [Egypt](https://apptail.io/app/lie-detector-by-the-expression-zZpd/egypt)
- [Algeria](https://apptail.io/app/lie-detector-by-the-expression-zZpd/algeria)
- [Ecuador](https://apptail.io/app/lie-detector-by-the-expression-zZpd/ecuador)
- [Ghana](https://apptail.io/app/lie-detector-by-the-expression-zZpd/ghana)
- [Hong Kong SAR China](https://apptail.io/app/lie-detector-by-the-expression-zZpd/hong-kong)
- [Honduras](https://apptail.io/app/lie-detector-by-the-expression-zZpd/honduras)
- [Indonesia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/indonesia)
- [Israel](https://apptail.io/app/lie-detector-by-the-expression-zZpd/israel)
- [Japan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/japan)
- [Kuwait](https://apptail.io/app/lie-detector-by-the-expression-zZpd/kuwait)
- [Kazakhstan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/kazakhstan)
- [Lebanon](https://apptail.io/app/lie-detector-by-the-expression-zZpd/lebanon)
- [Sri Lanka](https://apptail.io/app/lie-detector-by-the-expression-zZpd/sri-lanka)
- [Madagascar](https://apptail.io/app/lie-detector-by-the-expression-zZpd/madagascar)
- [Mali](https://apptail.io/app/lie-detector-by-the-expression-zZpd/mali)
- [Mexico](https://apptail.io/app/lie-detector-by-the-expression-zZpd/mexico)
- [Malaysia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/malaysia)
- [Nigeria](https://apptail.io/app/lie-detector-by-the-expression-zZpd/nigeria)
- [Nicaragua](https://apptail.io/app/lie-detector-by-the-expression-zZpd/nicaragua)
- [Nepal](https://apptail.io/app/lie-detector-by-the-expression-zZpd/nepal)
- [Oman](https://apptail.io/app/lie-detector-by-the-expression-zZpd/oman)
- [Panama](https://apptail.io/app/lie-detector-by-the-expression-zZpd/panama)
- [Peru](https://apptail.io/app/lie-detector-by-the-expression-zZpd/peru)
- [South Africa](https://apptail.io/app/lie-detector-by-the-expression-zZpd/south-africa)
- [Armenia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/armenia)
- [Argentina](https://apptail.io/app/lie-detector-by-the-expression-zZpd/argentina)
- [Azerbaijan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/azerbaijan)
- [Bahrain](https://apptail.io/app/lie-detector-by-the-expression-zZpd/bahrain)
- [Brunei](https://apptail.io/app/lie-detector-by-the-expression-zZpd/brunei)
- [Brazil](https://apptail.io/app/lie-detector-by-the-expression-zZpd/brazil)
- [Chile](https://apptail.io/app/lie-detector-by-the-expression-zZpd/chile)
- [Colombia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/colombia)
- [Dominican Republic](https://apptail.io/app/lie-detector-by-the-expression-zZpd/dominican-republic)
- [Uruguay](https://apptail.io/app/lie-detector-by-the-expression-zZpd/uruguay)
- [Uzbekistan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/uzbekistan)
- [Vietnam](https://apptail.io/app/lie-detector-by-the-expression-zZpd/vietnam)
- [United Arab Emirates](https://apptail.io/app/lie-detector-by-the-expression-zZpd/united-arab-emirates)
- [Singapore](https://apptail.io/app/lie-detector-by-the-expression-zZpd/singapore)
- [Thailand](https://apptail.io/app/lie-detector-by-the-expression-zZpd/thailand)
- [Tunisia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/tunisia)
- [Taiwan](https://apptail.io/app/lie-detector-by-the-expression-zZpd/taiwan)
- [Namibia](https://apptail.io/app/lie-detector-by-the-expression-zZpd/namibia)
- [Cayman Islands](https://apptail.io/app/lie-detector-by-the-expression-zZpd/cayman-islands)
- [Uganda](https://apptail.io/app/lie-detector-by-the-expression-zZpd/uganda)
- [Guyana](https://apptail.io/app/lie-detector-by-the-expression-zZpd/guyana)

---

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