# Lie / Truth Detector vs LieBuzzer

The clearest difference is review sentiment: LieBuzzer at 100% against Lie / Truth Detector's 44%. LieBuzzer also leads on rating (4.9 vs 4.0) and in-app purchases (none vs 3). Lie / Truth Detector's advantage is ratings volume (306 vs 12). On price, device support and iOS requirement there is nothing between them.

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

LieBuzzer holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: Lie / Truth Detector has 306 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 44% of Lie / Truth Detector's written reviews are positive against 100% of LieBuzzer's.

Lie / Truth Detector ships an update monthly, LieBuzzer daily. The most recent releases landed on October 22, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Lie / Truth Detector | LieBuzzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (306 ratings)](https://appshunter.io/ios/app/lie-truth-detector-polygraph/id1558500142/reviews) | **[4.9 (12 ratings)](https://appshunter.io/ios/app/liebuzzer/id6478897825/reviews)** |
| Number of ratings | **306** | 12 |
| Positive reviews | 44.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 120 MB | 2 MB |
| Requires iOS | **15.0** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Luis Hernando Prada](https://appshunter.io/developer/1554735315) | [Hovhannes Shahnazaryan](https://appshunter.io/developer/1734328922) |

## 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 |


### LieBuzzer

[App page](https://appshunter.io/ios/app/liebuzzer/id6478897825)

This entertainment app offers a simple, interactive experience where users can tap their screen to trigger "truth" or "lie" sounds and visuals. It encourages playful interaction with friends through various touch gestures.

**Highlights:** Tap to play truth sound, Tap to play lie buzzer, Doubletaps and long presses, Spamming interaction, Share with friends

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Lie / Truth Detector free?

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

### Is LieBuzzer free?

LieBuzzer is free to download, with no in-app purchases.

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

LieBuzzer is rated higher. Lie / Truth Detector averages 4.0 out of 5 from 306 ratings, while LieBuzzer averages 4.9 from 12 ratings.

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

Lie / Truth Detector shows ads; LieBuzzer does not.

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

Lie / Truth Detector ships an update monthly, and LieBuzzer daily. Most recently, Lie / Truth Detector was updated on October 22, 2026 and LieBuzzer on October 2, 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.*