# Lie Detector Fingerprint Prank — Polygraph Truth Test & Game

> Simulates a lie detector test for pranking friends. (iPhone/iPad app by Daniel Chernyshev.)

- Source: https://appshunter.io/ios/app/lie-detector-fingerprint-prank/id6444106214 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Chernyshev](https://appshunter.io/developer/1263001766)
- Category: Entertainment
- Price: Free with in-app purchases
- Rating: 4.40/5 from 1,257 App Store ratings · 310 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 96 MB
- Languages: American English, Arabic, Belarusian, Catalan, Dutch, Finnish, French (France), German (Germany), Greek, Hebrew and 16 more
- Released: 2022-11-02
- Data updated: 2026-10-03
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/lie-detector-fingerprint-prank/id6444106214/reviews.md

## What is Lie Detector Fingerprint Prank?

Turn any question into a funny prank with Lie Detector Fingerprint Prank.

Ask your friend a question, place a finger on the screen, and let the finger scan simulation reveal a playful Truth or Lie result. It is simple, fast, and made for harmless laughs with friends and family.

Use it at parties, game nights, sleepovers, or whenever you want to create a funny moment. Ask questions like “Did you eat the last slice of pizza?”, “Are you hiding a secret?”, or “Did you cheat in the game?” and watch everyone react to the result.

Features:
• Finger scan prank simulator
• Truth or Lie results
• Random result mode
• Manual result control from settings
• Fun scan animations and effects
• Easy to use with friends and family
• Great for parties, jokes, and casual games

Want to control the prank? Choose the result in settings and decide whether the next scan shows Truth or Lie. Or keep it random and let the app surprise you.

Lie Detector Test - Polygraph is designed for entertainment only. It is a prank simulator and does not detect real lies, emotions, biometric data, or truthfulness. Use it only for fun.

Privacy Policy: https://dilongdann.com/liedetector/policy

Terms of Service: https://dilongdann.com/liedetector/terms

## Key features

- Simulated lie detection
- Fingerprint scanning animation
- Customizable results
- Random result option
- Prank your friends

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Weekly Subscription | $0.99 | per 7 days |
| Monthly Subscription | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lie Detector Premium Forever | $4.99 | one-time |


## What do users think of Lie Detector Fingerprint Prank?

Overall sentiment: neutral

**Pros**

- 👍 Real lie detector
- 😊 Fun and entertaining
- ✅ Mostly accurate
- 🔍 Reveals secrets

**Cons**

- 🐛 Inconsistent/inaccurate results
- 💰 Premium features behind paywall
- 📺 Too many ads
- 🤔 Questionable functionality

**Commonly reported bugs**

- Incorrect responses
- Freezing/crashing issues
- Compatibility problems

**Most requested features**

- Less ads
- More customization options
- Improved accuracy
- Ability to select truth/lie mode

## Recent user reviews (10 of 310)

All indexed reviews: https://appshunter.io/ios/app/lie-detector-fingerprint-prank/id6444106214/reviews.md

### 1/5 — 結局金

*2026-08-09*

ランダム以外全部課金なので、使い道がありません

**Developer response:** レビューありがとうございます。ランダム以外も試したい場合は、設定メニューからリワード広告を見ることで、一時的に無料でプレミアム機能を使えます。永久ではありませんが、気軽に試せる方法です。今後も楽しいいたずらアプリになるよう改善します。

### 5/5 — Fun

*2026-07-08, version 2.0.5*

Fun but it's random

### 1/5 — Scam

*2026-07-04, version 2.0.5*

Was not scanning correctly it tells you to not move your finger every time when you’re not moving it and it sucks cause it doesn’t scan correctly what a scam!
Says fake		don’t get

### 1/5 — Scam

*2026-06-21, version 2.0.4*

Was not scanning correctly it tells you to not move your finger every time when you’re not moving it and it sucks cause it doesn’t scan correctly what a scam!

### 2/5 — This thing is not really legit

*2026-06-16*

It said the same answer over and over and in the settings you can make it all true all false or random PS people might think this is legit and it might ruin some lives and the text they sent me would not cure any tromp some one might have

**Developer response:** Thanks for taking the time to share your feedback. You’re right—the app can repeat answers if the result mode is set to a fixed value. For more variety, try switching to random mode in Settings, or keep manual mode for a controlled prank effect when that’s what you want. Thanks again for trying it out and helping us make it better.

### 1/5 — Great 1 thing

*2026-06-03, version 1.1.10*

This is a great app I love it sooo much it helps tho the lie detector thing doesn’t tell the truth this is a scam don’t tell the truth 1 star

### 5/5 — Я проверю лично он говорит правду полностью бесплатное приложение не требуется никаких денег

*2026-05-28*

Класс

**Developer response:** Спасибо за отзыв! Рады, что приложение вам понравилось и удобно для шуток с друзьями и семьёй.

### 1/5 — ts rigged

*2026-05-28, version 1.1.10*

it lies

### 5/5 — Girl

*2026-05-27*

This is fine if your kids are not telling the truth, but if you use this They will most likely use this as a test and think that it won’t work so I recommend this year with some people but I recommend this year so I get this a five stark

**Developer response:** Thanks for your review. You’re right—it’s important to treat this as a fun prank, not a real truth test. We’re glad it can be useful for games with friends and family, and thanks for the five-star feedback. If you want, try the manual result option in Settings to keep each round playful and in your control.

### 5/5 — Good

*2026-05-23, version 1.1.10*

Good

## Frequently asked questions about Lie Detector Fingerprint Prank

### What does the Lie Detector Test app do?

This app simulates a lie detector test for entertainment. It allows you to prank your friends by placing your finger on the screen, and the app will then indicate whether the person is telling the truth or lying.

### How can I customize the results?

In the app's settings, you have the option to choose any result you want to display. This allows you to pre-determine whether the scan will show 'truth' or 'lie' to prank your friends effectively.

### Is this app free to use?

The app is free to download and use. It does include advertisements and offers in-app purchases, which may provide additional features or remove ads.

### What is the main use case for this app?

The primary use case for this app is to entertain and prank friends. It's designed for lighthearted fun and social interaction, simulating a polygraph test for amusement.

## Version history (last 5 releases)

### 2.0.7 — 2026-10-03

Improved stability.

### 2.0.6 — 2026-08-09

Added new features.

### 2.0.5 — 2026-06-29

Improved stability

### 2.0.4 — 2026-06-17

Improved stability

### 2.0.3 — 2026-06-09

We completely redesigned the app to make the lie detector prank experience more fun, smooth, and visually polished.

• New app design
• New color themes
• Updated icons
• Improved animations
• Better scan effects
• More result options
• Bug fixes and performance improvements

## Apps similar to Lie Detector Fingerprint Prank

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Lie Detector: True-False Test](https://appshunter.io/ios/app/lie-detector-true-false-test/id1642503184) | 4.4 (1,155) | Free | Entertainment |
| [Lie Detector - Scanner Game](https://appshunter.io/ios/app/lie-detector-scanner-game/id1606733866) | 4.4 (1,267) | Free | Entertainment |
| [Lie Detector Truth Test](https://appshunter.io/ios/app/lie-detector-truth-test/id1113503715) | 4.6 (49,052) | Free | Entertainment |
| [Lie Detector Test Truth Shock](https://appshunter.io/ios/app/lie-detector-test-truth-shock/id1602913125) | 4.6 (644) | Free | Entertainment |
| [Lie Detector Fingerprint Scan](https://appshunter.io/ios/app/lie-detector-fingerprint-scan/id1109566348) | 3.3 (9,271) | Free | Entertainment |
| [Lie Detector: Test Scan Prank](https://appshunter.io/ios/app/lie-detector-test-scan-prank/id6451336145) | 3.9 (1,615) | Free | Entertainment |

## More apps by Daniel Chernyshev

- [Boxing Timer & Interval Timer](https://appshunter.io/ios/app/boxing-timer-and-interval-timer/id1643412616)
- [Trivia Games: Quiz for Brain](https://appshunter.io/ios/app/trivia-games-quiz-for-brain/id6447531851)
- [Text Repeater: Stylish text](https://appshunter.io/ios/app/text-repeater-stylish-text/id6469721338)
- [Massager: Strong Vibration!](https://appshunter.io/ios/app/massager-strong-vibration/id6471004082)
- [Tally Counter・Quick Count](https://appshunter.io/ios/app/tally-counterquick-count/id6477309408)

All apps by Daniel Chernyshev: https://appshunter.io/developer/1263001766

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*