# BioDigital Lie Detector vs LieBuzzer

The clearest difference is review sentiment: LieBuzzer at 100% against BioDigital Lie Detector's 50%. LieBuzzer also leads on rating (4.9 vs 2.1) and in-app purchases (none vs 1). BioDigital Lie Detector's advantage is iOS requirement (11.0 vs 16.5). On price, ratings volume and device support there is nothing between them.

Both are free to download. BioDigital Lie Detector sells 1 one-off in-app purchase. LieBuzzer asks for nothing beyond the download.

LieBuzzer holds the better App Store score, 4.9 against 2.1. Both are backed by a comparable volume of ratings — 7 and 14 respectively. Written reviews point the same way: 50% of BioDigital Lie Detector's written reviews are positive against 100% of LieBuzzer's.

BioDigital Lie Detector ships an update every 5 months, LieBuzzer daily. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BioDigital Lie Detector | LieBuzzer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (7 ratings)](https://appshunter.io/ios/app/biodigital-lie-detector/id895966491/reviews) | **[4.9 (14 ratings)](https://appshunter.io/ios/app/liebuzzer/id6478897825/reviews)** |
| Number of ratings | 7 | **14** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Daily** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 MB | 2 MB |
| Requires iOS | **11.0** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tamer Abdel-Baset](https://appshunter.io/developer/375954576) | [Hovhannes Shahnazaryan](https://appshunter.io/developer/1734328922) |

## What reviewers say

### BioDigital Lie Detector

[App page](https://appshunter.io/ios/app/biodigital-lie-detector/id895966491)

This app simulates a lie detector, offering a fun way to guess if friends are telling the truth. It features realistic visuals and three distinct modes for generating results. Designed purely for entertainment, it allows users to playfully uncover secrets.

**Highlights:** Realistic lie detector simulation, Voice level, stability, and balance analysis, Three result methods: Random, One by One, Sequence, Fool friends into revealing secrets, Designed for entertainment purposes

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Activate Lie Detector Pro | $0.99 | 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 BioDigital Lie Detector free?

BioDigital Lie 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, BioDigital Lie Detector or LieBuzzer?

LieBuzzer is rated higher. BioDigital Lie Detector averages 2.1 out of 5 from 7 ratings, while LieBuzzer averages 4.9 from 14 ratings.

### Do BioDigital Lie Detector or LieBuzzer have ads?

BioDigital Lie Detector shows ads; LieBuzzer does not.

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

BioDigital Lie Detector ships an update every 5 months, and LieBuzzer daily. Most recently, BioDigital Lie Detector was updated on October 29, 2026 and LieBuzzer on October 24, 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.*