Comparison

Lie Detector Finger Scan vs Lie detector

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

Head to head
About

Lie Detector Finger Scan

This entertainment app simulates a lie detector using fingerprint scanning. Prank friends and family by making them believe you can detect if they are lying. It offers preset truth or lie answers or random results for fun.

Highlights
  • Fingerprint scanner simulation
  • Preset truth/lie answers
  • Random result mode
  • Realistic animations and sounds
  • Prank friends and family
Features
Read full description

Settle the moment with a playful truth test and skip awkward guessing. Run a finger scan, get a dramatic lie detector verdict, and turn any hangout into a quick party game. Lie Detector Finger Scan helps friends run a simulated lie detector scan for laughs, party prompts, and shareable results. Everything happens on this device, with no account needed and no real lie detection claims. The app is built for entertainment, keeps a clear “For entertainment only” label on results, and gives you quick ways to start a scan, stop it, replay past results, or jump into party games when you want more than a simple finger scan. - Run a Fingerprint scan with a large touch stage, animated scan line, progress bar, and clear Start Scan or Stop control. - Switch result mode between Random and Preset when you want a surprise verdict or want to pin TRUE or LIE for a repeated demo. - Turn on MAYBE for an inconclusive result and add more variety to each truth detector moment. - Watch the verdict reel spin into TRUE, LIE, or MAYBE for a playful reveal, with a simulated stress meter shown beside the polygraph-style gauge. - Save recent lie detector results with time and simulated stress, review summary counts, or clear history in one tap. - Add your own question before a scan or use the random question generator when nobody knows what to ask. - Use Shake-to-Scan for a faster party flow, and keep a Truth Streak going when the same result lands more than once. - Jump into Party Games with decks like Truth or Dare, Would You Rather, Two Truths One Lie, Never Have I Ever, Hot Seat, Couples Quiz, Friend Confessions, and Icebreakers. - Save favorite party cards, filter by category, share a party card image, or test reflexes in Reaction Time with personal-best tracking. - Check Insights to see your TRUE, LIE, and MAYBE split, daily activity, scan mode usage, and party deck activity over time. - Share a result card image with a simulated entertainment badge so friends see the joke right away. - Break the ice at a party with Duo mode, then pass the phone back and forth for turn-based scans. - Add a random question before a Fingerprint scan when the group wants a quick truth or dare style prompt. - Use the History list after game night to replay funny verdicts and compare simulated stress scores. - Open the daily question from the Home Screen widget when you want a fresh prompt without thinking. - Start a quick reaction challenge between rounds of Would You Rather or Never Have I Ever. Pro adds more ways to play: Voice mode with a live waveform, Face mode with a live camera preview and playful pulse highlights, Duo mode, Truth Mode for planned TRUE, LIE, or MAYBE runs, premium party decks, extra voice packs, scan replay from history, a shareable polygraph report, Live Activity during a scan, and ad-free use. Microphone and camera access are only used for simulated scan views, and no audio, photos, or video are recorded. Your scans, favorites, and history stay on this device unless you choose to share or export. Try a finger scan, pick a question, and bring a little drama to your next party. Terms of Use (EULA) - http://www.apple.com/legal/itunes/appstore/dev/stdeula

About

Lie detector

This app simulates a lie detector by scanning a fingerprint to determine if someone is telling the truth or lying. It measures pulse variations to provide a "mind reading" result, intended for entertainment and pranks.

Highlights
  • Fingerprint scanning lie detection simulation
  • Pulse variation analysis
  • Simulates a polygraph test
  • Prank friends and family
  • Entertainment purposes only
Features
Read full description

Lie detector: test is a real truth detector app, also known as a polygraph test. Indeed, it allows you to tell if someone is lying or telling the truth. To use the lie scanner: Cover the back camera with your finger and say something. The app will scan your fingerprint and understand if what you say is a lie or a truth. The lie detector will measure your pulse and give you a result based on the variation of your pulse. It is a true mind reader. This lie detector works like a true polygraph test, indeed like a real test it can detect your heartbeat in your finger. It measures and records your pulse while a person is asked and answers a series of questions. For a good laugh, prank your friends, use the truth detector on your family members or friends. Disclaimer: Use for entertainment purposes only, the app does not provide real truth detection functionality.

Screenshots

Lie Detector Finger Scan4 screens
Lie detector3 screens

Verdict

The call

The clearest difference is in-app purchases: Lie detector at none against Lie Detector Finger Scan's 10. Lie detector also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). On price, rating, ratings volume 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 Finger Scan sells 10 in-app purchases, starting at $1.99 per 7 days. Lie detector asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.0 for Lie Detector Finger Scan against 4.0 for Lie detector. Both are backed by a comparable volume of ratings — 8 and 5 respectively. Written reviews are what separate them: 33% of Lie Detector Finger Scan's written reviews are positive against 50% of Lie detector's.

UpkeepUpdate frequency

Lie Detector Finger Scan ships an update every 3 months, Lie detector weekly. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
Lie Detector Finger Scan versus Lie detector: the parameters behind the verdict, then further details
ParameterLie Detector Finger ScanLie detector
PriceFreeFree
Rating4.0 (8 ratings)4.0 (5 ratings)
Positive reviews33.3% of reviews50.0% of reviews — better
Number of ratings8 — better5
Update frequencyEvery 3 monthsWeekly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.013.0 — better
Further details — not scored
Size12 MB3 MB
Age rating4+4+
DeveloperSandeep BhandariWarlock Arts

Customer experience

Lie Detector Finger Scan

All ratings8 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Lie detector

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

10 purchases

Lie Detector Finger Scan

Subscriptions8
  • Weekly Subscription$1.997 Days
  • Monthly Subscription7 Days trial$4.991 Month
  • Pro Weekly$4.997 Days
Show 5 more
  • Yearly Subscription Discount7 Days trial$14.991 Year
  • Yearly Subscription Sale$14.991 Year
  • Yearly Subscription Special$19.991 Year
  • Yearly Subscription1 Year trial$29.991 Year
  • Pro Annual7 Days trial$29.991 Year
One-time2
  • Forever Pro Discount$79.99
  • Forever Pro$99.99
None

Lie detector

No in-app purchases

Questions

Is Lie Detector Finger Scan free?
Lie Detector Finger Scan is free to download, with in-app purchases available.
Is Lie detector free?
Lie detector is free to download, with no in-app purchases.
Which has better reviews, Lie Detector Finger Scan or Lie detector?
Lie Detector Finger Scan and Lie detector are both rated 4.0 out of 5 on the App Store, from 8 and 5 ratings respectively.
Do Lie Detector Finger Scan or Lie detector have ads?
Lie Detector Finger Scan shows ads; Lie detector does not.
Which is updated more often, Lie Detector Finger Scan or Lie detector?
Lie Detector Finger Scan ships an update every 3 months, and Lie detector weekly. Most recently, Lie Detector Finger Scan was updated on November 6, 2026 and Lie detector on November 6, 2026.

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