# FreqBox vs Necrometer

The clearest difference is price: FreqBox at Free against Necrometer's $9.99. FreqBox also leads on rating (3.2 vs 2.7) and update cadence (every 4 days vs every 9 months). Necrometer's advantage is ratings volume (271 vs 17) and chart position (#13 vs unranked). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

FreqBox is free to download; Necrometer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FreqBox holds the better App Store score, 3.2 against 2.7. That said, the two scores are not equally well evidenced: Necrometer has 271 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 38% of FreqBox's written reviews are positive against 31% of Necrometer's.

FreqBox ships an update every 4 days, Necrometer every 9 months. The most recent releases landed on September 17, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | FreqBox | Necrometer |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[3.2 (17 ratings)](https://appshunter.io/ios/app/freqbox-ghost-box/id1628025876/reviews)** | [2.7 (271 ratings)](https://appshunter.io/ios/app/necrometer/id1670762759/reviews) |
| Number of ratings | 17 | **271** |
| Positive reviews | **37.5% of reviews** | 30.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 months |
| Monetization | Free | Free |
| Best chart rank | — | **#13** |
| Size | 23 MB | 174 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Eloy Marin](https://appshunter.io/developer/1625562408) | [BitPlague LLC](https://appshunter.io/developer/1119043156) |

## What reviewers say

### FreqBox

[App page](https://appshunter.io/ios/app/freqbox-ghost-box/id1628025876)

This experimental tool simulates radio frequency sweeps to facilitate potential communication with spirits. It utilizes recordings and a unique algorithm to detect anomalies and allow for paranormal interaction through modulated audio.

**Highlights:** Simulated FM/AM frequency sweep, EVP psychophony audio banks, No-probability anomaly detection, Spirit communication facilitation, Paranormal interaction generation, Ideal for ghost hunting

**Features:** macOS Compatibility

**In-app purchases:** none


### Necrometer

[App page](https://appshunter.io/ios/app/necrometer/id1670762759)

**Currently charting:** #13 Top Paid · Utilities (US App Store)

This app is designed for ghost hunters and paranormal investigators. It detects magnetic energy fluctuations and facilitates spirit communication through text and speech modes using AI-powered systems and audio effects. It aims to provide insights and messages from the other side.

**Highlights:** Magnetic energy detection meter, Text-based spirit communication, AI-powered speech generation, Customizable voice and audio effects, Access to over 60,000 words/phrases, Custom word list functionality

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌟 Accurate responses
- 👍 Useful for paranormal investigations
- 🤖 Unique voice options

**What reviewers complain about**

- 🔇 Audio issues (no sound, language not in English)
- 🤖 Unreliable/inconsistent speech/text responses
- 💰 Overpriced for features provided
- 🔍 Lack of customization options

**Reported bugs**

- Audio not working on certain devices
- Random/irrelevant responses

**Requested features**

- Ability to save/review past session logs
- Multi-language support
- Custom word list functionality


## Frequently asked questions

### Is FreqBox free?

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

### Is Necrometer free?

Necrometer costs $9.99, with no in-app purchases.

### Which has better reviews, FreqBox or Necrometer?

FreqBox is rated higher. FreqBox averages 3.2 out of 5 from 17 ratings, while Necrometer averages 2.7 from 271 ratings.

### Do FreqBox or Necrometer have ads?

Neither FreqBox nor Necrometer shows ads.

### Which is updated more often, FreqBox or Necrometer?

FreqBox ships an update every 4 days, and Necrometer every 9 months. Most recently, FreqBox was updated on September 17, 2026 and Necrometer 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.*