Comparison

Lie Detector Test vs Metal Detector Simulator Prank

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

Head to head
About

Lie Detector Test

Simulate a lie detector test using your fingerprint. Fool your friends with this fun prank app that analyzes a "scan" of their finger to determine if they are telling the truth or lying. Perfect for lighthearted entertainment.

Highlights
  • Fingerprint scanner simulation
  • Prank mode to fool friends
  • Fake lie/truth results
  • Laser Xray effect
  • Random result generation
Features
Read full description

Start the scan your fingerprint and say something to see if it is true or a lie. Place your finger on the scanner area and allow scanner begin. Laser Xray will go throught your finger. Use the prank features to fool everyone with this fake lie detector test. Instruction for prank mode: Start by touching and holding friend's finger down on the scan area. First time you see a random result. On result screen tap on the left side of button for “False", and on the right for "True". Pressing the restart button will give a random result. Disclaimer: This application is only a prank trick for fun. it's not a real polygraph lie detector.

About

Metal Detector Simulator Prank

Transform your phone into a simulated metal detector for fun. Prank friends by pretending to find metal objects. Adjust signal strength with finger movements for interactive play.

Highlights
  • Simulated metal detection
  • Prank your friends
  • Adjustable signal strength
  • Interactive finger controls
  • Improvise and play games
Features
Read full description

Turn your device into a metal detector with a this app! Prank your friends! Find metal in their heads or another places. Move your finger up or down to change the degree of the signal. Improvise and play other games! Disclaimer: This application is only a prank trick for fun. It's not a real metal detector.

Screenshots

Lie Detector Test3 screens
Metal Detector Simulator Prank3 screens

Verdict

The call

The clearest difference is rating: Metal Detector Simulator Prank at 4.3 against Lie Detector Test's 3.4. Metal Detector Simulator Prank also leads on update cadence (every 4 months vs every 42 months) and review sentiment (59% vs 36%). Lie Detector Test's advantage is ratings volume (1.6K vs 59). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Metal Detector Simulator Prank holds the better App Store score, 4.3 against 3.4. That said, the two scores are not equally well evidenced: Lie Detector Test has 1.6K ratings behind it against 59, so its average is the more settled of the two. Written reviews point the same way: 36% of Lie Detector Test's written reviews are positive against 59% of Metal Detector Simulator Prank's.

UpkeepUpdate frequency

Lie Detector Test ships an update every 42 months, Metal Detector Simulator Prank every 4 months. The most recent releases landed on November 1, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 6 level
Lie Detector Test versus Metal Detector Simulator Prank: the parameters behind the verdict, then further details
ParameterLie Detector TestMetal Detector Simulator Prank
PriceFreeFree
Rating3.4 (1.6K ratings)4.3 (59 ratings) — better
Positive reviews36.5% of reviews58.8% of reviews — better
Number of ratings1.6K — better59
Update frequencyEvery 42 monthsEvery 4 months — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.012.0
Further details — not scored
Size22 MB25 MB
Age rating4+4+
DeveloperDenis BatishchevDenis Batishchev

Customer experience

Lie Detector Test

All ratings1,637 ratings
Positive56.3%
Neutral6.6%
Negative37.1%
Written reviews584 reviews
Positive36.5%
Neutral9.6%
Negative53.9%

Metal Detector Simulator Prank

All ratings59 ratings
Positive81.4%
Neutral5.1%
Negative13.6%
Written reviews17 reviews
Positive58.8%
Neutral0.0%
Negative41.2%

Bugs and requests

Lie Detector Test

Reported bugs

2 issues
  • Incorrectly identifies true statements as lies
  • Freezes after each use

Requested features

2 requests
  • More realistic lie detection
  • Option to change language

Metal Detector Simulator Prank

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Lie Detector Test

No in-app purchases

None

Metal Detector Simulator Prank

No in-app purchases

Questions

Is Lie Detector Test free?
Lie Detector Test is free to download, with no in-app purchases.
Is Metal Detector Simulator Prank free?
Metal Detector Simulator Prank is free to download, with no in-app purchases.
Which has better reviews, Lie Detector Test or Metal Detector Simulator Prank?
Metal Detector Simulator Prank is rated higher. Lie Detector Test averages 3.4 out of 5 from 1.6K ratings, while Metal Detector Simulator Prank averages 4.3 from 59 ratings.
Do Lie Detector Test or Metal Detector Simulator Prank have ads?
Both Lie Detector Test and Metal Detector Simulator Prank show ads.
Which is updated more often, Lie Detector Test or Metal Detector Simulator Prank?
Lie Detector Test ships an update every 42 months, and Metal Detector Simulator Prank every 4 months. Most recently, Lie Detector Test was updated on November 1, 2026 and Metal Detector Simulator Prank on October 21, 2026.

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