# Lie / Truth Detector vs Lie Detector

The clearest difference is rating: Lie Detector at 4.4 against Lie / Truth Detector's 4.0. Lie Detector also leads on ratings volume (1.3K vs 306). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Lie / Truth Detector sells 3 one-off in-app purchases and Lie Detector sells 7 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lie Detector holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 306 and 1.3K respectively. Written reviews point the same way: 44% of Lie / Truth Detector's written reviews are positive against 52% of Lie Detector's.

Both ship on a similar rhythm, roughly monthly. Both last shipped on November 7, 2026.

## The numbers

| Metric | Lie / Truth Detector | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (306 ratings)](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142/reviews) | **[4.4 (1.3K ratings)](https://appshunter.io/ios/app/lie-detector-scanner-game/id1606733866/reviews)** |
| Number of ratings | 306 | **1.3K** |
| Positive reviews | 44.4% of reviews | **52.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 120 MB | 67 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Luis Hernando Prada](https://appshunter.io/developer/1554735315) | [WeBrain](https://appshunter.io/developer/1578514377) |

## 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

[App page](https://appshunter.io/ios/app/lie-detector-scanner-game/id1606733866)

This is a humorous game that simulates lie detection. Test your friends and family by having them answer questions while the app analyzes their voice or face. You can even rig the results for a good laugh.

**Highlights:** Simulates lie detection, Voice analysis during scan, Face analysis during scan, Rig scan results for pranks, Fun for friends and family

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium subscription | $1.99 | per 7 days |
| Premium subscriptions | $1.99 | per 7 days |
| Premium Subscription | $3.99 | per month |
| Premium subscription | $3.99 | per month |
| Lie Detector Test | $4.99 | per year |
| Premium subscription | $9.99 | per year |
| Premium subscription | $9.99 | per year |

**What reviewers like**

- 👍 Best one
- 👍 Very accurate
- 👍 Good game

**What reviewers complain about**

- 💰 Expensive subscription
- 🤔 Inconsistent results
- ❌ Doesn't work as expected
- 🚫 Scam/not legit

**Reported bugs**

- Incorrect results
- Technical issues with scanners

**Requested features**

- Free access to all features
- Improve accuracy and reliability


## Frequently asked questions

### Is Lie / Truth Detector free?

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

### Is Lie Detector free?

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

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

Lie Detector is rated higher. Lie / Truth Detector averages 4.0 out of 5 from 306 ratings, while Lie Detector averages 4.4 from 1.3K ratings.

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

Both Lie / Truth Detector and Lie Detector show ads.

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

Lie / Truth Detector ships an update monthly, and Lie Detector monthly. Most recently, Lie / Truth Detector was updated on November 7, 2026 and Lie Detector 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.*