# Smithville ES vs EMF Detector

The clearest difference is in-app purchases: Smithville ES at none against EMF Detector's 1. Smithville ES also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. EMF Detector sells 1 one-off in-app purchase. Smithville ES asks for nothing beyond the download.

Smithville ES ships an update monthly, EMF Detector every 3 weeks. The most recent releases landed on October 20, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Smithville ES | EMF Detector |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 46 MB | 25 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Central Service Association](https://appshunter.io/developer/793979817) | [Ashir Mehmood](https://appshunter.io/developer/6809578079) |

## What reviewers say

### Smithville ES

[App page](https://appshunter.io/ios/app/smithville-es/id1511785458)

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

**In-app purchases:** none


### EMF Detector

[App page](https://appshunter.io/ios/app/emf-detector-ghost-meter/id6809578077)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EMF Detector Pro | $4.99 | one-time |


## Frequently asked questions

### Is Smithville ES free?

Smithville ES is free to download, with no in-app purchases.

### Is EMF Detector free?

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

### Do Smithville ES or EMF Detector have ads?

EMF Detector shows ads; Smithville ES does not.

### Which is updated more often, Smithville ES or EMF Detector?

Smithville ES ships an update monthly, and EMF Detector every 3 weeks. Most recently, Smithville ES was updated on October 20, 2026 and EMF Detector on October 26, 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.*