# Open Reader vs Smart Metal Detector & EMF

The clearest difference is price: Smart Metal Detector & EMF at Free against Open Reader's $4.99. Smart Metal Detector & EMF also leads on review sentiment (62% vs 17%) and rating (4.4 vs 1.0). Open Reader's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence and device support there is nothing between them.

Smart Metal Detector & EMF is free to download; Open Reader costs $4.99 up front. Smart Metal Detector & EMF sells 4 in-app purchases, starting at $4.99 per 7 days. Open Reader asks for nothing beyond the download.

Smart Metal Detector & EMF holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Smart Metal Detector & EMF has 270 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 17% of Open Reader's written reviews are positive against 62% of Smart Metal Detector & EMF's.

Open Reader ships an update every 2 months, Smart Metal Detector & EMF every 6 weeks. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Open Reader | Smart Metal Detector & EMF |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/open-reader/id418736078/reviews) | **[4.4 (270 ratings)](https://appshunter.io/ios/app/smart-metal-detector-and-emf/id1114708518/reviews)** |
| Number of ratings | 2 | **270** |
| Positive reviews | 17.1% of reviews | **61.5% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 36 MB | 118 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [UMateY](https://appshunter.io/developer/327433577) | [ZipoApps](https://appshunter.io/developer/1671444635) |

## What reviewers say

### Open Reader

[App page](https://appshunter.io/ios/app/open-reader/id418736078)

This app allows you to view a wide range of document formats, including Open Document files, PDFs, and Microsoft Office documents. It also functions as a robust document manager, enabling file downloads from various sources and cloud storage services.

**Highlights:** View ODT, ODS, ODP files, Download files from email and web, Manage files with folders and renaming, View PDF, Word, Excel, PowerPoint, Integrates with Google Drive, Dropbox, Box, Wireless file transfer

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Metal Detector & EMF

[App page](https://appshunter.io/ios/app/smart-metal-detector-and-emf/id1114708518)

This tool uses your phone's magnetic sensor to detect nearby metal by measuring magnetic field strength. It alerts you with vibrations and sounds when metal is close, and can help locate hidden devices or electrical wires.

**Highlights:** Detects metal using magnetic sensor, Measures magnetic field strength (EMF), Vibration and sound alerts, Adjustable sensitivity, Locates electrical wires and pipes, Scans for hidden devices

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week subscription | $4.99 | per 7 days |
| Weekly Access | $8.99 | per 7 days |
| Advertising free version | $0.99 | one-time |
| Forever one-time payment | $34.99 | one-time |


## Frequently asked questions

### Is Open Reader free?

Open Reader costs $4.99, with no in-app purchases.

### Is Smart Metal Detector & EMF free?

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

### Which has better reviews, Open Reader or Smart Metal Detector & EMF?

Smart Metal Detector & EMF is rated higher. Open Reader averages 1.0 out of 5 from 2 ratings, while Smart Metal Detector & EMF averages 4.4 from 270 ratings.

### Do Open Reader or Smart Metal Detector & EMF have ads?

Smart Metal Detector & EMF shows ads; Open Reader does not.

### Which is updated more often, Open Reader or Smart Metal Detector & EMF?

Open Reader ships an update every 2 months, and Smart Metal Detector & EMF every 6 weeks. Most recently, Open Reader was updated on October 27, 2026 and Smart Metal Detector & EMF on October 29, 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.*