# Note by Chat & Send Files vs EMFMeter

The clearest difference is in-app purchases: Note by Chat & Send Files at none against EMFMeter's 3. Note by Chat & Send Files also leads on ads (none vs shown). EMFMeter's advantage is update cadence (every 2 months vs every 11 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. EMFMeter sells 3 in-app purchases, starting at $3.99 per 7 days. Note by Chat & Send Files asks for nothing beyond the download.

Note by Chat & Send Files ships an update every 11 months, EMFMeter every 2 months. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Note by Chat & Send Files | EMFMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (98 ratings)](https://appshunter.io/ios/app/emfmeter-radiation-reader/id6747639722/reviews)** |
| Number of ratings | — | **98** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Size | 26 MB | 187 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Shotdoor](https://appshunter.io/developer/530049796) | [Neuralful Ai ltd](https://appshunter.io/developer/1707749156) |

## What reviewers say

### Note by Chat & Send Files

[App page](https://appshunter.io/ios/app/note-by-chat-and-send-files/id6740557621)

**Features:** macOS Compatibility

**In-app purchases:** none


### EMFMeter

[App page](https://appshunter.io/ios/app/emfmeter-radiation-reader/id6747639722)

This tool transforms your smartphone into a real-time electromagnetic field scanner. It visualizes EMF readings, detects studs and metal objects behind walls, and alerts you to high EMF levels. You can also track EMF source direction and export data for analysis.

**Highlights:** Real-time EMF detection, Electromagnetic field visualization, Built-in stud finder, High EMF alerts, EMF source direction tracking, CSV data export, Session logging

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| week | $3.99 | per 7 days |
| yearlypro | $9.99 | per year |
| emfmeter | $19.99 | one-time |


## Frequently asked questions

### Is Note by Chat & Send Files free?

Note by Chat & Send Files is free to download, with no in-app purchases.

### Is EMFMeter free?

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

### Do Note by Chat & Send Files or EMFMeter have ads?

EMFMeter shows ads; Note by Chat & Send Files does not.

### Which is updated more often, Note by Chat & Send Files or EMFMeter?

Note by Chat & Send Files ships an update every 11 months, and EMFMeter every 2 months. Most recently, Note by Chat & Send Files was updated on September 19, 2026 and EMFMeter on September 25, 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.*