# Lie / Truth Detector vs Lie Detector Test Truth Shock

The clearest difference is rating: Lie Detector Test Truth Shock at 4.6 against Lie / Truth Detector's 4.0. Lie Detector Test Truth Shock also leads on in-app purchases (none vs 3) and iOS requirement (13.0 vs 15.0). Lie / Truth Detector's advantage is update cadence (monthly vs every 22 months). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Lie / Truth Detector sells 3 one-off in-app purchases. Lie Detector Test Truth Shock asks for nothing beyond the download.

Lie Detector Test Truth Shock holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 306 and 779 respectively. Written reviews point the same way: 44% of Lie / Truth Detector's written reviews are positive against 47% of Lie Detector Test Truth Shock's.

Lie / Truth Detector ships an update monthly, Lie Detector Test Truth Shock every 22 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | Lie / Truth Detector | Lie Detector Test Truth Shock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (306 ratings)](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142/reviews) | **[4.6 (779 ratings)](https://appshunter.io/ios/app/lie-detector-test-truth-shock/id1602913125/reviews)** |
| Number of ratings | 306 | **779** |
| Positive reviews | 44.4% of reviews | **46.8% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Monthly** | Every 22 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 120 MB | 76 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luis Hernando Prada](https://appshunter.io/developer/1554735315) | [Alex Quesada](https://appshunter.io/developer/1567029705) |

## What reviewers say

### Lie / Truth Detector

[App page](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142)

Simulate a lie or truth detector with this fun app. Analyze what your friends and family say and see if the simulated polygraph detects truth or lies. Features fantastic graphics and effects for hours of entertainment.

**Highlights:** Simulates lie/truth detection, Polygraph simulation, Fantastic graphics, Engaging effects, Hours of fun

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove the ads | $2.99 | one-time |
| AI Detector | $3.99 | one-time |
| All features + no ads | $5.99 | one-time |


### Lie Detector Test Truth Shock

[App page](https://appshunter.io/ios/app/lie-detector-test-truth-shock/id1602913125)

This app simulates a lie detector test using your device's fingerprint scanner. It's designed for entertainment, allowing you to prank friends and family by revealing random or controlled 'truth' or 'lie' results.

**Highlights:** Fingerprint scanner simulation, Random lie/truth results, Controlled result option, Prank friends and family, Realistic polygraph simulation

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 😂 Fun for pranks
- 👍 Easy to use
- 🤩 Entertaining
- 💯 Good for friends
- ⭐ Accurate sometimes

**What reviewers complain about**

- 👎 Fake answers
- 👎 Inaccurate results
- 👎 Says lie when it's truth
- 👎 Says truth when it's lie
- 👎 Random answers

**Reported bugs**

- Keeps saying lie
- Changes original answer
- Says lie when truth
- Says truth when lie
- Inconsistent results

**Requested features**

- No ads
- Mini games


## Frequently asked questions

### Is Lie / Truth Detector free?

Lie / Truth Detector is free to download, with in-app purchases available.

### Is Lie Detector Test Truth Shock free?

Lie Detector Test Truth Shock is free to download, with no in-app purchases.

### Which has better reviews, Lie / Truth Detector or Lie Detector Test Truth Shock?

Lie Detector Test Truth Shock is rated higher. Lie / Truth Detector averages 4.0 out of 5 from 306 ratings, while Lie Detector Test Truth Shock averages 4.6 from 779 ratings.

### Do Lie / Truth Detector or Lie Detector Test Truth Shock have ads?

Both Lie / Truth Detector and Lie Detector Test Truth Shock show ads.

### Which is updated more often, Lie / Truth Detector or Lie Detector Test Truth Shock?

Lie / Truth Detector ships an update monthly, and Lie Detector Test Truth Shock every 22 months. Most recently, Lie / Truth Detector was updated on November 7, 2026 and Lie Detector Test Truth Shock on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*