# Ghost Detector vs Math Slowly

The clearest difference is in-app purchases: Math Slowly at none against Ghost Detector's 1. Math Slowly also leads on ads (none vs shown). Ghost Detector's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

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

Ghost Detector ships an update every 3 months, Math Slowly every 2 months. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Ghost Detector | Math Slowly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (161 ratings)](https://appshunter.io/ios/app/ghost-detector-spirit-tracker/id458931889/reviews)** | — |
| Number of ratings | **161** | — |
| Positive reviews | 61.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Digital Bananas, LLC](https://appshunter.io/developer/424070738) | [29Apps LLC](https://appshunter.io/developer/1817021563) |

## What reviewers say

### Ghost Detector

[App page](https://appshunter.io/ios/app/ghost-detector-spirit-tracker/id458931889)

This app simulates paranormal detection using four simulated technologies: RADAR, EMF, Infrasound & EVP, and Ion detection. It aims to identify irregular energy fluctuations and unusual sounds in the environment for entertainment purposes.

**Highlights:** Simulated RADAR for energy fluctuations, EMF detector for electron vibrations, Infrasound & EVP sound analysis, Ion detector for electric field charges, Entertainment-focused paranormal simulation

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |

**What reviewers like**

- 🚀 Detects paranormal activity
- 👍 Entertaining and fun to use
- 🔍 Provides insights into the supernatural

**What reviewers complain about**

- 🐛 Inconsistent performance and accuracy
- 😨 Can be too scary for some users
- 🔋 Drains device battery quickly

**Reported bugs**

- Dots on the radar do not always accurately represent location
- Voices and sounds sometimes cut out or are difficult to hear
- App crashes or freezes unexpectedly

**Requested features**

- More customization options
- Improved voice recognition and clarity
- Ability to save and review past paranormal encounters


### Math Slowly

[App page](https://appshunter.io/ios/app/math-slowly/id6751968285)

**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 Math Slowly free?

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

### Do Ghost Detector or Math Slowly have ads?

Ghost Detector shows ads; Math Slowly does not.

### Which is updated more often, Ghost Detector or Math Slowly?

Ghost Detector ships an update every 3 months, and Math Slowly every 2 months. Most recently, Ghost Detector was updated on October 23, 2026 and Math Slowly on October 9, 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.*