# LieQ - Real Lie Detector — Real Heartbeat Lie Detection

> Real Heartbeat Lie Detection (iPhone/iPad app by Heuk Kim.)

- Source: https://appshunter.io/ios/app/lieq-real-lie-detector/id6760900744 (this page in markdown: same URL + `.md`)
- Developer: [Heuk Kim](https://appshunter.io/developer/1886702471)
- Category: Entertainment, Health & Fitness
- Price: Free
- Age rating: 17+
- Requires: iOS 13.0 · 61 MB
- Languages: American English
- Released: 2026-03-25
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/lieq-real-lie-detector/id6760900744/reviews.md

## What is LieQ?

Real PPG Lie Detector — Analyze heart rate changes in real-time

LieQ is the world's first lie detector app that uses real PPG (photoplethysmography) heart rate measurement. Place your finger on the rear camera, ask a question, and watch the heartbeat change in real-time.

▸ HOW IT WORKS

Your body reacts when you lie. Heart rate increases, HRV changes — LieQ catches these micro-changes through 4 steps:

01. Flash illuminates your fingertip
02. Camera reads blood flow changes
03. Lying → Sympathetic nervous system activation
04. HRV fluctuation is detected and scored

▸ REAL MEASUREMENT, NOT FAKE

• Real-time PPG waveform display
• RMSSD / SDNN / HR weighted HRV scoring
• Based on Scientific Reports 2024 methodology
• Patent Pending — 3 patents filed

▸ 97+ QUESTIONS

• 40 General questions — fun party questions
• 57 Adult questions — couples & party mode
• Write your own custom questions
• Random pick button for each category

▸ IMPORTANT NOTE

LieQ is an entertainment app. For ages 16+.

Patent Pending · Based on Scientific Reports 2024


## Version history (last 2 releases)

### 1.0.2 — 2026-03-28

Bug fixes and performance improvements

### 1.0.0 — 2026-03-25

No release notes.

## Apps similar to LieQ

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Lie Detector Test ‎](https://appshunter.io/ios/app/lie-detector-test/id6745645704) | 4.3 (26) | Free | Entertainment |
| [SusAI - AI Lie Detector Test](https://appshunter.io/ios/app/susai-ai-lie-detector-test/id6761579885) | 5.0 (5) | Free | Entertainment |
| [AI Lie Detector.](https://appshunter.io/ios/app/ai-lie-detector/id6746071721) | — | Free | Entertainment |
| [Lie Detector Test Scan](https://appshunter.io/ios/app/lie-detector-test-scan/id6741363985) | 4.0 (6) | Free | Entertainment |
| [TruthScan AI - Lie Detector](https://appshunter.io/ios/app/truthscan-ai-lie-detector/id6759193664) | — | Free | Entertainment |
| [Mangaka.app](https://appshunter.io/ios/app/mangakaapp/id6756778803) | — | Free | Entertainment |

## More apps by Heuk Kim

- [AgeQ - Body Age Test](https://appshunter.io/ios/app/ageq-body-age-test/id6761166429)
- [MindQ - Mood & Wellness](https://appshunter.io/ios/app/mindq-mood-and-wellness/id6761301188)
- [MemoryQ - Cognitive Wellness](https://appshunter.io/ios/app/memoryq-cognitive-wellness/id6761308495)
- [NerveQ](https://appshunter.io/ios/app/nerveq/id6761310506)
- [BurnoutQ](https://appshunter.io/ios/app/burnoutq/id6761311495)

All apps by Heuk Kim: https://appshunter.io/developer/1886702471

## Related topics

[real lie detector](https://appshunter.io/ios/topics/real-lie-detector)

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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 2026-08-19.*