# Grammar Corrector vs EMF Radar

The clearest difference is rating: Grammar Corrector at 5.0 against EMF Radar's 4.4. EMF Radar's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Grammar Corrector sells 1 in-app purchase, starting at $9.99 per 7 days. EMF Radar asks for nothing beyond the download.

Grammar Corrector holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 2 and 7 respectively.

Grammar Corrector ships an update every 5 months, EMF Radar every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Grammar Corrector | EMF Radar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/grammar-corrector/id6755179113/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/emf-radar/id6758415227/reviews) |
| Number of ratings | 2 | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 34 MB | 5 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Blazing App Studio](https://appshunter.io/developer/1787017244) | [Justin Tormey](https://appshunter.io/developer/1753277265) |

## What reviewers say

### Grammar Corrector

[App page](https://appshunter.io/ios/app/grammar-corrector/id6755179113)

Instantly improve your writing by checking and correcting grammar, spelling, and sentence structure. This tool highlights errors and offers one-tap fixes for clearer, more professional communication in messages, emails, and essays. Track your correction history to identify and learn from common mistakes.

**Highlights:** Instant grammar and spelling checks, One-tap error correction, Correction history tracking, Simple editing interface, Improves writing clarity and professionalism

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-free Experience — Weekly | $9.99 | per 7 days |


### EMF Radar

[App page](https://appshunter.io/ios/app/emf-radar/id6758415227)

This app uses your device's sensors to detect and measure electromagnetic fields in real-time. It also provides a map to visualize nearby cellular towers and their coverage, offering insights into your local electromagnetic environment.

**Highlights:** Real-time magnetic field measurements, Animated gauge display, Cellular tower map, Searchable location for tower coverage, EMF scores for cellular density, Offline magnetometer readings

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Grammar Corrector free?

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

### Is EMF Radar free?

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

### Which has better reviews, Grammar Corrector or EMF Radar?

Grammar Corrector is rated higher. Grammar Corrector averages 5.0 out of 5 from 2 ratings, while EMF Radar averages 4.4 from 7 ratings.

### Do Grammar Corrector or EMF Radar have ads?

Grammar Corrector shows ads; EMF Radar does not.

### Which is updated more often, Grammar Corrector or EMF Radar?

Grammar Corrector ships an update every 5 months, and EMF Radar every 2 months. Most recently, Grammar Corrector was updated on October 28, 2026 and EMF Radar 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.*