# EMF Meter Scanner Detector vs String search calculator

The clearest difference is price: String search calculator at Free against EMF Meter Scanner Detector's $4.99. String search calculator also leads on in-app purchases (none vs 2) and update cadence (every 2 weeks vs monthly). EMF Meter Scanner Detector's advantage is ads (none vs shown) and iOS requirement (12.1 vs 15.8.3). On device support there is nothing between them.

String search calculator is free to download; EMF Meter Scanner Detector costs $4.99 up front. EMF Meter Scanner Detector sells 2 one-off in-app purchases. String search calculator asks for nothing beyond the download.

EMF Meter Scanner Detector ships an update monthly, String search calculator every 2 weeks. Both last shipped on October 20, 2026.

## The numbers

| Metric | EMF Meter Scanner Detector | String search calculator |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.8 (526 ratings)](https://appshunter.io/ios/app/emf-meter-scanner-detector/id1565532516/reviews)** | — |
| Number of ratings | **526** | — |
| Positive reviews | 86.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 79 MB | 37 MB |
| Requires iOS | **12.1** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Gregorio Martin Bello](https://appshunter.io/developer/567988393) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### EMF Meter Scanner Detector

[App page](https://appshunter.io/ios/app/emf-meter-scanner-detector/id1565532516)

Measure electromagnetic field (EMF) levels around you to assess potential environmental risks. This tool helps you identify high-exposure areas and provides data for informed decisions about your surroundings. It offers automatic saving, value averaging, and data sharing capabilities without requiring specialized hardware.

**Highlights:** Measure EMF levels, Identify risk zones, Automatic value saving, Average measurement values, Share data in CSV format, Informative EMF content

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $0.99 | one-time |
| Unlock all Features | $2.99 | one-time |

**What reviewers like**

- 👍 Easy to use
- 🚀 Accurate readings
- 💡 Helpful for detecting EMF sources
- 🔍 Useful for paranormal investigations
- ⭐ Great app overall

**What reviewers complain about**

- 🐛 Occasional inaccurate readings
- 🔍 Limited functionality for advanced users
- 💰 Paid version required for full features

**Reported bugs**

- App crashes on older devices
- Paid version not working as expected

**Requested features**

- More detailed EMF data and analysis
- Compatibility with external EMF meters
- Customizable alert thresholds


### String search calculator

[App page](https://appshunter.io/ios/app/string-search-calculator/id6502218395)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMF Meter Scanner Detector free?

EMF Meter Scanner Detector costs $4.99, and also offers in-app purchases.

### Is String search calculator free?

String search calculator is free to download, with no in-app purchases.

### Do EMF Meter Scanner Detector or String search calculator have ads?

String search calculator shows ads; EMF Meter Scanner Detector does not.

### Which is updated more often, EMF Meter Scanner Detector or String search calculator?

EMF Meter Scanner Detector ships an update monthly, and String search calculator every 2 weeks. Most recently, EMF Meter Scanner Detector was updated on October 20, 2026 and String search calculator on October 20, 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.*