# Poopy Doopy vs Lie Detector

The clearest difference is ads: Poopy Doopy at none against Lie Detector's shown. Poopy Doopy also leads on iOS requirement (11.2 vs 15.6). Lie Detector's advantage is ratings volume (1.7K vs 3) and rating (3.9 vs 3.7). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Poopy Doopy sells 1 one-off in-app purchase and Lie Detector sells 2 in-app purchases, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Lie Detector holds the better App Store score, 3.9 against 3.7. That said, the two scores are not equally well evidenced: Lie Detector has 1.7K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Poopy Doopy's written reviews are positive against 42% of Lie Detector's.

Poopy Doopy ships an update every 4 weeks, Lie Detector fortnightly. The most recent releases landed on November 2, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Poopy Doopy | Lie Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/poopy-doopy/id1429557420/reviews) | **[3.9 (1.7K ratings)](https://appshunter.io/ios/app/lie-detector-test-scan-prank/id6451336145/reviews)** |
| Number of ratings | 3 | **1.7K** |
| Positive reviews | 33.3% of reviews | **42.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 231 MB |
| Requires iOS | **11.2** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [MeguMethod s.r.o.](https://appshunter.io/developer/889708670) | [Nguyen Quy Son](https://appshunter.io/developer/1594539200) |

## What reviewers say

### Poopy Doopy

[App page](https://appshunter.io/ios/app/poopy-doopy/id1429557420)

This app provides sound effects to mask embarrassing bodily noises during private moments. Choose from various sounds like a hairdryer or jet engine to cover up any unexpected noises, preventing awkward social situations.

**Highlights:** Sound effects to mask noises, Variety of sound options, Prevents social embarrassment, Easy to use interface

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Jetman fan | $0.99 | one-time |


### Lie Detector

[App page](https://appshunter.io/ios/app/lie-detector-test-scan-prank/id6451336145)

This app simulates a lie detector using fingerprint or eye scanning to prank friends and family. It provides entertainment by revealing whether someone is telling the truth or lying, with additional fun features like a beauty and love score.

**Highlights:** Fingerprint lie detector simulation, Eye scanner for truth test, Dual player check, Fake lie detection results, Beauty Score feature, Love Detector feature

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium weekly | $0.99 | per 7 days |
| Premium monthly | $1.99 | per month |

**What reviewers like**

- 👍 Fun and entertaining
- 🤩 Accurate lie detection
- 💡 Interesting game concept

**What reviewers complain about**

- 🙄 Inconsistent results
- 😡 Excessive ads
- 🤔 Questionable accuracy

**Reported bugs**

- Ads blocking the lie detector interface
- Incorrect results for true statements
- Glitchy and unstable performance

**Requested features**

- Reduce ads
- Improve accuracy and consistency
- Add eye scanning feature


## Frequently asked questions

### Is Poopy Doopy free?

Poopy Doopy 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, Poopy Doopy or Lie Detector?

Lie Detector is rated higher. Poopy Doopy averages 3.7 out of 5 from 3 ratings, while Lie Detector averages 3.9 from 1.7K ratings.

### Do Poopy Doopy or Lie Detector have ads?

Lie Detector shows ads; Poopy Doopy does not.

### Which is updated more often, Poopy Doopy or Lie Detector?

Poopy Doopy ships an update every 4 weeks, and Lie Detector fortnightly. Most recently, Poopy Doopy was updated on November 2, 2026 and Lie Detector on November 12, 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.*