# Frequency Sound Generator App vs EMF Radiation Detector Reader

The clearest difference is monetization model: EMF Radiation Detector Reader at free with in-app purchases against Frequency Sound Generator App's subscription. Frequency Sound Generator App's advantage is update cadence (every 2 months vs every 6 months) and review sentiment (66% vs 54%). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Frequency Sound Generator App sells 2 in-app purchases, starting at $5.99 per 7 days and EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Frequency Sound Generator App against 4.5 for EMF Radiation Detector Reader. Both are backed by a comparable volume of ratings — 5.1K and 5K respectively. Written reviews are what separate them: 66% of Frequency Sound Generator App's written reviews are positive against 54% of EMF Radiation Detector Reader's.

Frequency Sound Generator App ships an update every 2 months, EMF Radiation Detector Reader every 6 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Frequency Sound Generator App | EMF Radiation Detector Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (5.1K ratings)](https://appshunter.io/ios/app/frequency-sound-generator-app/id1238160553/reviews)** | [4.5 (5K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews) |
| Number of ratings | **5.1K** | 5K |
| Positive reviews | **66.3% of reviews** | 53.5% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 36 MB | 20 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Min Ku](https://appshunter.io/developer/1204192873) | [Rounding Squares BV](https://appshunter.io/developer/976539506) |

## What reviewers say

### Frequency Sound Generator App

[App page](https://appshunter.io/ios/app/frequency-sound-generator-app/id1238160553)

Generate sound frequencies from 1Hz to 25,000Hz with a simple interface. Features include wave visualization, adjustable sensitivity, and multiple waveform options. Use it for hearing tests, pet training, or as a prank tool.

**Highlights:** Frequency range 1Hz to 25,000Hz, Wave visualization, Adjustable sensitivity, Multiple waveforms (Sine, Square, Sawtooth, Triangle), Custom frequency range, Logarithmic and Linear slider modes

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Access Weekly Plan | $5.99 | per 7 days |
| Unlimited Access Yearly Plan | $19.99 | per year |

**What reviewers like**

- 👍 Helpful for tinnitus
- 🚀 Accurate frequency generation
- 🎉 Great for meditation and relaxation
- 💡 Useful for testing speaker systems
- 🔍 Ability to test hearing range

**What reviewers complain about**

- 🐛 Difficulty adjusting precise frequencies
- 🔊 Extremely high frequencies can be painful
- 🔋 Stops playing when screen is locked
- 📢 Excessive ads
- 🤔 Mosquito repellent feature not effective

**Reported bugs**

- Frequency slider is overly sensitive
- Displayed frequency doesn't match actual output
- Inconsistent behavior between 'Play' and 'Mode' buttons

**Requested features**

- Option to save favorite frequencies
- Ability to type in specific frequency values
- Background playback support
- Paid ad-free version


### 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 Frequency Sound Generator App free?

Frequency Sound Generator App is free to download, with in-app purchases available.

### Is EMF Radiation Detector Reader free?

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

### Which has better reviews, Frequency Sound Generator App or EMF Radiation Detector Reader?

Frequency Sound Generator App is rated higher. Frequency Sound Generator App averages 4.5 out of 5 from 5.1K ratings, while EMF Radiation Detector Reader averages 4.5 from 5K ratings.

### Do Frequency Sound Generator App or EMF Radiation Detector Reader have ads?

Both Frequency Sound Generator App and EMF Radiation Detector Reader show ads.

### Which is updated more often, Frequency Sound Generator App or EMF Radiation Detector Reader?

Frequency Sound Generator App ships an update every 2 months, and EMF Radiation Detector Reader every 6 months. Most recently, Frequency Sound Generator App was updated on October 24, 2026 and EMF Radiation Detector Reader on October 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.*