# Live Spectrogram vs EMF Radiation Detector Reader

The clearest difference is price: EMF Radiation Detector Reader at Free against Live Spectrogram's $1.99. EMF Radiation Detector Reader also leads on ratings volume (4.7K vs 6) and update cadence (every 7 months vs every 31 months). Live Spectrogram's advantage is in-app purchases (none vs 2) and ads (none vs shown). On device support there is nothing between them.

EMF Radiation Detector Reader is free to download; Live Spectrogram costs $1.99 up front. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Live Spectrogram asks for nothing beyond the download.

Live Spectrogram holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 4.7K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 63% of Live Spectrogram's written reviews are positive against 53% of EMF Radiation Detector Reader's.

Live Spectrogram ships an update every 31 months, EMF Radiation Detector Reader every 7 months. The most recent releases landed on September 4, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Live Spectrogram | EMF Radiation Detector Reader |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/live-spectrogram/id630831185/reviews)** | [4.5 (4.7K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews) |
| Number of ratings | 6 | **4.7K** |
| Positive reviews | **62.5% of reviews** | 52.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 31 months | **Every 7 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#172** | — |
| Size | 15 MB | 20 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Krueger Systems, Inc.](https://appshunter.io/developer/299293363) | [Rounding Squares BV](https://appshunter.io/developer/976539506) |

## What reviewers say

### Live Spectrogram

[App page](https://appshunter.io/ios/app/live-spectrogram/id630831185)

**Currently charting:** #172 Top Paid · Utilities (US App Store)

Visualize sound frequencies in real-time with this tool. It displays audio intensity across time and frequency using color, helping you perfect singing, analyze animal calls, or locate household noises.

**Highlights:** Real-time audio visualization, Frequency analysis, Time-based spectrum display, Intensity shown by color, Singing voice perfection, Animal call analysis, Sound source identification

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

**In-app purchases:** none


### EMF Radiation Detector Reader

[App page](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734)

Detect electromagnetic fields (EMF) around you using your phone's sensors. Identify high-radiation zones in your home and workplace to better organize your environment and potentially improve well-being. Measure EMF emitted by various electronic devices and appliances.

**Highlights:** Detect EMF radiation, Measure EMF levels, Identify risk zones, Organize living space, Measure appliance emissions, No expensive equipment needed

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EMF Radiation Detector Premium Week | $1.99 | per 7 days |
| EMF Radiation Detector Premium Year | $9.99 | per year |

**What reviewers like**

- 👍 Works well around microwave
- 👍 Consistent results
- 👍 Useful tool for detecting EMF
- 👍 Legit EMF detection
- 👍 Helps find problem areas

**What reviewers complain about**

- 🐛 Ads cover reading numbers
- 🔍 Unclear how to interpret readings
- ⚠️ Questionable accuracy, only detects magnets
- 🔍 No explanation of safe/unsafe levels
- 🐛 Doesn't detect radio frequencies

**Reported bugs**

- Readings inconsistent or inaccurate
- Doesn't work as expected, only detects magnets

**Requested features**

- Add sound or vibration alerts for high EMF
- Provide more information on EMF levels and safety
- Improve layout to avoid ads covering readings


## Frequently asked questions

### Is Live Spectrogram free?

Live Spectrogram costs $1.99, with no in-app purchases.

### Is EMF Radiation Detector Reader free?

EMF Radiation Detector Reader is free to download, with in-app purchases available.

### Which has better reviews, Live Spectrogram or EMF Radiation Detector Reader?

Live Spectrogram is rated higher. Live Spectrogram averages 4.8 out of 5 from 6 ratings, while EMF Radiation Detector Reader averages 4.5 from 4.7K ratings.

### Do Live Spectrogram or EMF Radiation Detector Reader have ads?

EMF Radiation Detector Reader shows ads; Live Spectrogram does not.

### Which is updated more often, Live Spectrogram or EMF Radiation Detector Reader?

Live Spectrogram ships an update every 31 months, and EMF Radiation Detector Reader every 7 months. Most recently, Live Spectrogram was updated on September 4, 2026 and EMF Radiation Detector Reader on September 24, 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.*