# Brainwave Visualizer vs Ghost Hunting Tools

The clearest difference is in-app purchases: Brainwave Visualizer at none against Ghost Hunting Tools's 4. Brainwave Visualizer also leads on ads (none vs shown) and iOS requirement (7.1 vs 15.0). Ghost Hunting Tools's advantage is update cadence (every 4 weeks vs every 42 months) and review sentiment (67% vs 58%). On price and device support there is nothing between them.

Both are free to download. Ghost Hunting Tools sells 4 in-app purchases, starting at $4.99 per month. Brainwave Visualizer asks for nothing beyond the download.

Brainwave Visualizer ships an update every 42 months, Ghost Hunting Tools every 4 weeks. The most recent releases landed on June 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Brainwave Visualizer | Ghost Hunting Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.2 (9.5K ratings)](https://appshunter.io/ios/app/ghost-hunting-tools-detector/id1025393457/reviews)** |
| Number of ratings | — | **9.5K** |
| Positive reviews | 58.3% of reviews | **67.4% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 42 months | **Every 4 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 59 MB | 275 MB |
| Requires iOS | **7.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [NeuroSky, Inc.](https://appshunter.io/developer/499682244) | [Zee Weasel](https://appshunter.io/developer/1025393456) |

## What reviewers say

### Brainwave Visualizer

[App page](https://appshunter.io/ios/app/brainwave-visualizer/id639808715)

Visualize your brain's activity with a colorful, interactive display. This application shows a graphical representation of your mental state, including attention and meditation levels, with on-screen shapes that change based on your mind.

**Highlights:** Brainwave Visualization, Brainwave Power Spectrum Graph, eSense Attention Meter, eSense Meditation Meter, Interactive on-screen shapes

**In-app purchases:** none


### Ghost Hunting Tools

[App page](https://appshunter.io/ios/app/ghost-hunting-tools-detector/id1025393457)

This app simulates paranormal activity detection and spirit communication. It features a ghost detector, radar, and a large word bank to interpret signals, offering an immersive experience for paranormal enthusiasts.

**Highlights:** Paranormal activity detection, Spirit communication, EVP detector, Real-time paranormal radar, EMF reader, Large word bank for interpretation

**Features:** Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month Pro Subscription | $4.99 | per month |
| 1-Year Pro Subscription | $17.99 | per year |
| Ghost Hunting Tools Pro | $19.99 | one-time |
| Ghost Hunting Tools Pro | $29.99 | one-time |

**What reviewers like**

- 👍 Accurate and intelligent responses
- 🔍 Able to detect paranormal activity
- 🔑 Helped communicate with deceased loved ones
- 🌟 Surprisingly effective for a free app

**What reviewers complain about**

- 🐛 Occasional glitches and crashes
- 🔍 Inconsistent in detecting paranormal activity
- 🔊 Too many ads interrupting the experience
- 🤔 Unsure if it's truly communicating with spirits

**Reported bugs**

- App crashes when opening on certain devices
- Word history gets cleared after a few new words
- Microphone not working consistently for some users

**Requested features**

- Record and playback EVP sessions
- Expand the word dictionary for better communication
- Add a background mode to use with other apps
- Improve the EMF detector sensitivity and accuracy


## Frequently asked questions

### Is Brainwave Visualizer free?

Brainwave Visualizer is free to download, with no in-app purchases.

### Is Ghost Hunting Tools free?

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

### Do Brainwave Visualizer or Ghost Hunting Tools have ads?

Ghost Hunting Tools shows ads; Brainwave Visualizer does not.

### Which is updated more often, Brainwave Visualizer or Ghost Hunting Tools?

Brainwave Visualizer ships an update every 42 months, and Ghost Hunting Tools every 4 weeks. Most recently, Brainwave Visualizer was updated on June 7, 2026 and Ghost Hunting Tools on September 23, 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.*