# Truthr - Lie Detector Machine — Watch heart rate & detect liar

> Watch heart rate & detect liar (iPhone/iPad app by Ahmet Giray Ucar.)

- Source: https://appshunter.io/ios/app/truthr-lie-detector-machine/id6746220266 (this page in markdown: same URL + `.md`)
- Developer: [Ahmet Giray Ucar](https://appshunter.io/developer/1583246836)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: American English, Arabic, French (France), Korean, Brazilian Portuguese, Chinese (Simplified, China), Latin American Spanish, Chinese (Traditional, Taiwan), Vietnamese
- Released: 2025-05-27
- Data updated: 2026-08-28
- User reviews in markdown: https://appshunter.io/ios/app/truthr-lie-detector-machine/id6746220266/reviews.md

## What is Truthr?

Ever wondered if someone is telling the truth? With Truthr, you can now get real-time insights into truthfulness by leveraging the advanced biometric sensors on your Apple Watch.

Truthr monitors key physiological indicators known to shift under stress or deception. These include heart rate, heart rate variability (HRV), skin conductivity, and blood oxygen levels — all collected seamlessly from your Apple Watch. Our algorithm interprets these micro-changes to estimate the likelihood that someone is lying during a conversation, test, or personal reflection.

Whether you're testing yourself or having a conversation where honesty matters, Truthr helps you uncover hidden patterns beneath the surface.

How It Works:
Once connected to your Apple Watch, Truthr continuously collects biometric data in real time. When the app is in lie detection mode, it compares your baseline vitals with changes triggered by emotional or cognitive stress — known signs of deception. Using signal analysis and deception probability scoring, the app presents a clean and intuitive result: likely truthful or possibly deceptive.

Key Features:
• Continuous heart rate & HRV tracking
• Real-time skin conductance monitoring
• Blood oxygen level detection
• Proprietary stress/deception algorithm
• Seamless Apple Watch support
• Session history & insights
• Privacy-focused: Your data stays on your device

Why Truthr?
Most peoplanalysisw subtle physiological changes when they lie — but they’re nearly impossible to notice without advanced tools. Truthr brings lie detection science out of the lab and onto your wrist, giving you a powerful tool for personal awareness, playful challenges, or private testing.

Premium features:
- Unlimited analysis and tests

Disclaimer:
Truthr is designed for entertainment and personal insight. While grounded in real biometric science, it is not a substitute for professional or legal lie detection.

Terms of Use: https://docs.google.com/document/d/19sIWSDPRrHl5S5-CKj9HrZMtQnbVhP5_J2IGwg14LD8/edit?usp=sharing

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Truthr Weekly Premium | $3.99 | per 7 days |
| Truthr Weekly Discounted | $2.99 | per 7 days |
| Truthr Monthly Premium | $7.99 | per month |
| Truthr Yearly Premium | $39.99 | per year |



## Version history (last 2 releases)

### 2.0 — 2026-07-07

We regularly update the app to give you the best possible experience. This update includes visual improvements.

### 1.0 — 2025-05-27

No release notes.

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## More apps by Ahmet Giray Ucar

- [Valorant Crosshair - Custom X](https://appshunter.io/ios/app/valorant-crosshair-custom-x/id1583246834)
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- [Case Simulator for Valorant](https://appshunter.io/ios/app/case-simulator-for-valorant/id1661473901)
- [Financy Manager](https://appshunter.io/ios/app/financy-manager/id6443679954)
- [MapZone-Location Based Alarm](https://appshunter.io/ios/app/mapzone-location-based-alarm/id6443994252)
- [ReadMyDoc: OCR Reader Scanner](https://appshunter.io/ios/app/readmydoc-ocr-reader-scanner/id6446174780)

All apps by Ahmet Giray Ucar: https://appshunter.io/developer/1583246836

## Related topics

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

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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 2026-08-28.*