# Planets vs EMF Radiation Detector Reader

Planets and EMF Radiation Detector Reader both sit at 4.5 stars, but that hides the real split: 90% of Planets's written reviews are positive against 54% of EMF Radiation Detector Reader's. Planets also leads on in-app purchases (none vs 2) and ads (none vs shown). EMF Radiation Detector Reader's advantage is ratings volume (5K vs 981). On price, rating, update cadence and device support there is nothing between them.

Both are free to download. EMF Radiation Detector Reader sells 2 in-app purchases, starting at $1.99 per 7 days. Planets asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Planets against 4.5 for EMF Radiation Detector Reader. That said, the two scores are not equally well evidenced: EMF Radiation Detector Reader has 5K ratings behind it against 981, so its average is the more settled of the two. Written reviews are what separate them: 90% of Planets's written reviews are positive against 54% of EMF Radiation Detector Reader's.

Planets ships an update every 4 months, EMF Radiation Detector Reader every 6 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Planets | EMF Radiation Detector Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (981 ratings)](https://appshunter.io/ios/app/planets/id305793334/reviews) | **[4.5 (5K ratings)](https://appshunter.io/ios/app/emf-radiation-detector-reader/id1507914734/reviews)** |
| Number of ratings | 981 | **5K** |
| Positive reviews | **90.3% of reviews** | 53.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 20 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple TV** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Q Continuum](https://appshunter.io/developer/305793337) | [Rounding Squares BV](https://appshunter.io/developer/976539506) |

## What reviewers say

### Planets

[App page](https://appshunter.io/ios/app/planets/id305793334)

Explore the solar system with a 3D guide. Discover planets, moons, and celestial events with interactive sky views and visibility information. Perfect for budding astronomers.

**Highlights:** 3D solar system guide, 2D sky view, 3D planetarium sky view, Planet visibility times, Rotating 3D planet and moon globes

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

**In-app purchases:** none

**What reviewers like**

- 🤩 Amazing app
- 👍 Easy to use
- 🌟 Accurate and informative
- 🔭 Helpful for stargazing
- 🎓 Educational for kids and adults

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🧭 Compass/orientation issues
- 🌑 Inaccurate moon phase information
- 🌍 Location/GPS issues
- 🔍 Limited search/zoom functionality

**Reported bugs**

- Moon phase information not accurate
- Compass/orientation not working correctly
- App crashes on certain devices or iOS versions
- Location/GPS not functioning properly

**Requested features**

- Add Pluto and other dwarf planets
- Include more detailed information on stars and constellations
- Provide notifications for celestial events
- Improve search and zoom capabilities
- Add night mode for better visibility in the dark


### 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 Planets free?

Planets is free to download, 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, Planets or EMF Radiation Detector Reader?

EMF Radiation Detector Reader is rated higher. Planets averages 4.5 out of 5 from 981 ratings, while EMF Radiation Detector Reader averages 4.5 from 5K ratings.

### Do Planets or EMF Radiation Detector Reader have ads?

EMF Radiation Detector Reader shows ads; Planets does not.

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

Planets ships an update every 4 months, and EMF Radiation Detector Reader every 6 months. Most recently, Planets was updated on November 1, 2026 and EMF Radiation Detector Reader on November 4, 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.*