Comparison

Lie Detector Truth Test vs Prank Luck Scanner

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lie Detector Truth Test

Simulate a lie detector test using your device's screen and microphone. Analyze spoken words to determine if they are a truth or a lie, perfect for pranks and entertainment with friends and family.

Highlights
  • Fingerprint and voice scan simulation
  • Analyzes spoken words for truth/lie
  • Realistic computer voice
  • Prank mode
  • Amazing graphics and sounds
  • Hilarious fun
Read full description

The best truth and lie detector test app. Download now! Place your fingers on the screen and say something to find out if it is a truth or a lie. Make your friends and family laugh by saying funny things and finding out if they are true or false! Features: - Lie detector analyses what you say - Amazing graphics and sounds - Realistic computer voice - Prank mode - Hours of hilarious fun! Disclaimer: This lie detector app is intended for entertainment purposes only and does not provide real truth detector functionality.

About

Prank Luck Scanner

This novelty app simulates a fingerprint scan to provide a random horoscope. It's designed for entertainment and pranks, offering customization for scan speed, custom responses, and themes.

Highlights
  • Simulated fingerprint scan
  • Random horoscope generation
  • Customizable scan speed
  • Set custom responses
  • Multiple themes
Features
Read full description

*Note: This app is meant for entertainment purposes only. The thumb print scan is only a simulation, and it does not actually have the ability to tell how lucky you are! Fingerprint Luck Scanner is a novelty prank thumb print scanner app that tries to determine how lucky you are based on a mock fingerprint scan. Simply place your thumb on the scanner and the app will give you a random horoscope! Great gag for parties or for impressing the ladies at the club! Luck Scanner also contains some neat customization options. You can adjust the speed of the scan simulation, and you can set your own custom response, so that you can play the ultimate prank on your friends and family! There are also various themes to choose from, so you can adjust the look of the app to match your personality!

Screenshots

Lie Detector Truth Test2 screens
Prank Luck Scanner4 screens

Verdict

The call

The clearest difference is rating: Lie Detector Truth Test at 4.6 against Prank Luck Scanner's 1.0. Lie Detector Truth Test also leads on update cadence (every 3 months vs every 21 months) and ratings volume (49K vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lie Detector Truth Test sells 1 one-off in-app purchase and Prank Luck Scanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Lie Detector Truth Test holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Lie Detector Truth Test has 49K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Lie Detector Truth Test ships an update every 3 months, Prank Luck Scanner every 21 months. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Lie Detector Truth Test versus Prank Luck Scanner: the parameters behind the verdict, then further details
ParameterLie Detector Truth TestPrank Luck Scanner
PriceFreeFree
Rating4.6 (49K ratings) — better1.0 (1 ratings)
Positive reviews51.0% of reviews—
Number of ratings49K — better1
Update frequencyEvery 3 months — betterEvery 21 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size167 MB16 MB
Age rating12+4+
DeveloperFirst Class Media B.V.Brandon Stecklein

Customer experience

Lie Detector Truth Test

All ratings49,052 ratings
Positive88.8%
Neutral4.1%
Negative7.1%
Written reviews1,109 reviews
Positive51.0%
Neutral5.6%
Negative43.4%

Prank Luck Scanner

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Lie Detector Truth Test

Reported bugs

3 issues
  • Crashes on some devices
  • Fingerprint scanning issues
  • Incorrect results for true statements

Requested features

3 requests
  • Reduce ads
  • Improve accuracy and consistency
  • Add voice detection option

Prank Luck Scanner

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Lie Detector Truth Test

One-time1
  • Remove ads$1.99
1 purchases

Prank Luck Scanner

One-time1
  • Luck Scanner Premium$0.99

Questions

Is Lie Detector Truth Test free?
Lie Detector Truth Test is free to download, with in-app purchases available.
Is Prank Luck Scanner free?
Prank Luck Scanner is free to download, with in-app purchases available.
Which has better reviews, Lie Detector Truth Test or Prank Luck Scanner?
Lie Detector Truth Test is rated higher. Lie Detector Truth Test averages 4.6 out of 5 from 49K ratings, while Prank Luck Scanner averages 1.0 from 1 ratings.
Do Lie Detector Truth Test or Prank Luck Scanner have ads?
Both Lie Detector Truth Test and Prank Luck Scanner show ads.
Which is updated more often, Lie Detector Truth Test or Prank Luck Scanner?
Lie Detector Truth Test ships an update every 3 months, and Prank Luck Scanner every 21 months. Most recently, Lie Detector Truth Test was updated on November 9, 2026 and Prank Luck Scanner on November 6, 2026.

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