# Hollow vs EctoMeter Ghost Detector

The clearest difference is iOS requirement: Hollow at 14.0 against EctoMeter Ghost Detector's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Hollow sells 3 in-app purchases, starting at $1.99 per 7 days and EctoMeter Ghost Detector sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Hollow ships an update every 4 weeks, EctoMeter Ghost Detector every 5 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Hollow | EctoMeter Ghost Detector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/hollow-ghost-box-evp-and-sls/id6781119666/reviews)** | — |
| Number of ratings | **9** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 2 MB |
| Requires iOS | **14.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 9+ |
| Developer | [少雄 路](https://appshunter.io/developer/1866520462) | [Zcode](https://appshunter.io/developer/1861301699) |

## What reviewers say

### Hollow

[App page](https://appshunter.io/ios/app/hollow-ghost-box-evp-and-sls/id6781119666)

Transform your device into a paranormal investigation kit with tools like an EMF meter, spirit box, and EVP recorder. Capture spooky moments with AR ghosts and SLS cameras, then share your findings. This is an entertainment experience designed for fun, not a real paranormal detector.

**Highlights:** K2 / EMF Meter, Spirit Box, EVP Recorder, SLS Camera, AR Ghosts, Shareable Reports

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hollow Pro Weekly | $1.99 | per 7 days |
| Hollow Pro Yearly | $9.99 | per year |
| Hollow Pro Lifetime | $14.99 | one-time |


### EctoMeter Ghost Detector

[App page](https://appshunter.io/ios/app/ectometer-ghost-detector/id6781209065)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Hollow free?

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

### Is EctoMeter Ghost Detector free?

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

### Do Hollow or EctoMeter Ghost Detector have ads?

Neither Hollow nor EctoMeter Ghost Detector shows ads.

### Which is updated more often, Hollow or EctoMeter Ghost Detector?

Hollow ships an update every 4 weeks, and EctoMeter Ghost Detector every 5 weeks. Most recently, Hollow was updated on October 13, 2026 and EctoMeter Ghost Detector on September 29, 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.*