# AI Lie Detector. vs Polygraph AI

The clearest difference is ads: AI Lie Detector. at none against Polygraph AI's shown. Polygraph AI's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | AI Lie Detector. | Polygraph AI |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | Free | — |
| Size | 12 MB | 31 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [GKUER](https://appshunter.io/developer/1623974660) | [Andres Saiz Ruiperez](https://appshunter.io/developer/6781788677) |

## What reviewers say

### AI Lie Detector.

[App page](https://appshunter.io/ios/app/ai-lie-detector/id6746071721)

Engage in realistic Q&A sessions where an AI analyzes voice recordings to detect truthfulness. Powered by GPT-4, it evaluates context, logic, tone, and emotion, providing explanations for its judgments. This app is designed for entertainment and fun interactions.

**Highlights:** Voice-based Q&A analysis, AI truth/lie detection, GPT-4 powered analysis, Explanation of judgments, Psychological game for friends, Easy-to-use interface

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

**In-app purchases:** none


### Polygraph AI

[App page](https://appshunter.io/ios/app/polygraph-ai-lie-analysis/id6796011746)

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

**In-app purchases:** none


## Frequently asked questions

### Is AI Lie Detector. free?

AI Lie Detector. is free to download, with no in-app purchases.

### Is Polygraph AI free?

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

### Do AI Lie Detector. or Polygraph AI have ads?

Polygraph AI shows ads; AI Lie Detector. does not.

### Which is updated more often, AI Lie Detector. or Polygraph AI?

AI Lie Detector. ships an update every 2 days, and Polygraph AI every 2 days. Most recently, AI Lie Detector. was updated on October 16, 2026 and Polygraph AI on October 25, 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.*