# Ghost Detector vs Flappy Defender

The clearest difference is in-app purchases: Flappy Defender at none against Ghost Detector's 1. Flappy Defender also leads on ads (none vs shown) and update cadence (every 5 days vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Ghost Detector sells 1 one-off in-app purchase. Flappy Defender asks for nothing beyond the download.

Ghost Detector ships an update every 3 months, Flappy Defender every 5 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Ghost Detector | Flappy Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (444 ratings)](https://appshunter.io/ios/app/ghost-detector-lost-souls/id1005370857/reviews)** | — |
| Number of ratings | **444** | — |
| Positive reviews | 47.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 209 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [KING TECNOLOGIA DA INFORMACAO LTDA](https://appshunter.io/developer/1000082642) | [Timur Liftiiev](https://appshunter.io/developer/1691601544) |

## What reviewers say

### Ghost Detector

[App page](https://appshunter.io/ios/app/ghost-detector-lost-souls/id1005370857)

This app simulates the detection of paranormal activity by analyzing environmental factors like electromagnetic fields, temperature, vibrations, and sounds. It is designed purely for entertainment and does not offer genuine ghost-locating capabilities.

**Highlights:** Simulates paranormal activity detection, Analyzes electromagnetic fields, Monitors temperature changes, Detects vibrations and sounds, Interprets possible nearby presences, Best used in low-light, quiet environments

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ghost Detector Premium | $0.99 | one-time |

**What reviewers like**

- 😱 Genuinely scary experiences
- 👻 Appears to detect spirits
- 👍 Works as intended for some users
- 😲 Convincing paranormal encounters
- 🤩 Awesome and very cool

**What reviewers complain about**

- 😠 Relentless and long ads
- 👎 Fake ghosts, green screen/AI effects
- ⚠️ Trademark infringement concerns
- 🙄 Not much creativity, just red spots
- 📉 Radar inaccuracies

**Reported bugs**

- App crashes after warning screen
- App crashes on tap to continue
- No longer works for iPhone 4s
- Radar does not show directional change

**Requested features**

- Fix radar directional accuracy
- Improve ghost realism
- Reduce ad frequency and length


### Flappy Defender

[App page](https://appshunter.io/ios/app/flappy-defender/id6450933872)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ghost Detector free?

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

### Is Flappy Defender free?

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

### Do Ghost Detector or Flappy Defender have ads?

Ghost Detector shows ads; Flappy Defender does not.

### Which is updated more often, Ghost Detector or Flappy Defender?

Ghost Detector ships an update every 3 months, and Flappy Defender every 5 days. Most recently, Ghost Detector was updated on October 24, 2026 and Flappy Defender 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.*