# MerchClass vs Spectra

The clearest difference is in-app purchases: MerchClass at none against Spectra's 2. MerchClass also leads on iOS requirement (12.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Spectra sells 2 in-app purchases, starting at $3.99 per 7 days. MerchClass asks for nothing beyond the download.

MerchClass ships an update fortnightly, Spectra every 10 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | MerchClass | Spectra |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (9 ratings)](https://appshunter.io/ios/app/spectra-ghost-detector-and-emf/id6757859867/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 118 MB | 46 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SKROLL TU MARS, OOO](https://appshunter.io/developer/1498171787) | [Yahor Bazyk](https://appshunter.io/developer/6788705254) |

## What reviewers say

### MerchClass

[App page](https://appshunter.io/ios/app/merchclass/id1594729431)

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

**In-app purchases:** none


### Spectra

[App page](https://appshunter.io/ios/app/spectra-ghost-detector-and-emf/id6757859867)

Transform your device into a paranormal investigation tool. Detect and attempt communication with spirits using a ghost radar, EMF field detector, and spirit box communicator. Explore the unknown and uncover potential supernatural activity.

**Highlights:** Ghost Radar Visualizer, EMF Field Detector, Spirit Box Communicator, Real-time spirit tracking, Electromagnetic field detection, Two-way spirit communication

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Year | $24.99 | per year |


## Frequently asked questions

### Is MerchClass free?

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

### Is Spectra free?

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

### Do MerchClass or Spectra have ads?

Neither MerchClass nor Spectra shows ads.

### Which is updated more often, MerchClass or Spectra?

MerchClass ships an update fortnightly, and Spectra every 10 days. Most recently, MerchClass was updated on October 30, 2026 and Spectra on October 31, 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.*