# Aerosmith Trivia vs Ghost Detector EMF Necrometer

The clearest difference is in-app purchases: Aerosmith Trivia at none against Ghost Detector EMF Necrometer's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Ghost Detector EMF Necrometer sells 4 in-app purchases, starting at $4.99 per 7 days. Aerosmith Trivia asks for nothing beyond the download.

Aerosmith Trivia ships an update weekly, Ghost Detector EMF Necrometer every 10 days. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Aerosmith Trivia | Ghost Detector EMF Necrometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (446 ratings)](https://appshunter.io/ios/app/ghost-detector-emf-necrometer/id6754881764/reviews)** |
| Number of ratings | — | **446** |
| Positive reviews | — | 54.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | — | Subscription |
| Size | 6 MB | 68 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [Martin Tseng](https://appshunter.io/developer/1217065716) | [Boss Web SRL](https://appshunter.io/developer/1839514881) |

## What reviewers say

### Aerosmith Trivia

[App page](https://appshunter.io/ios/app/aerosmith-trivia/id6479701949)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ghost Detector EMF Necrometer

[App page](https://appshunter.io/ios/app/ghost-detector-emf-necrometer/id6754881764)

This app combines EMF detection with a spirit box to facilitate paranormal communication. It offers professional-grade tools for real-time environmental monitoring and authentic voice manifestations, designed for both enthusiasts and experienced investigators.

**Highlights:** EMF Magnetic Energy Detection, DR60 Spirit Box Sound Bank, Phoneme-Based Audio Generation, 9 Sound Banks and White Noise, Spoken Response System (Text-to-Speech), Built-In Audio Effects (Echo, Reverb), Advanced Paranormal Tools (Waveform Display)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $4.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Special Offer | $14.99 | one-time |
| Lifetime Plan | $29.99 | one-time |


## Frequently asked questions

### Is Aerosmith Trivia free?

Aerosmith Trivia is free to download, with no in-app purchases.

### Is Ghost Detector EMF Necrometer free?

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

### Do Aerosmith Trivia or Ghost Detector EMF Necrometer have ads?

Neither Aerosmith Trivia nor Ghost Detector EMF Necrometer shows ads.

### Which is updated more often, Aerosmith Trivia or Ghost Detector EMF Necrometer?

Aerosmith Trivia ships an update weekly, and Ghost Detector EMF Necrometer every 10 days. Most recently, Aerosmith Trivia was updated on October 25, 2026 and Ghost Detector EMF Necrometer on October 30, 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.*