# BTG IOT HD vs EMF Meter

The clearest difference is price: BTG IOT HD at Free against EMF Meter's $0.99. EMF Meter's advantage is update cadence (every 2 months vs every 19 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

BTG IOT HD is free to download; EMF Meter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BTG IOT HD ships an update every 19 months, EMF Meter every 2 months. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BTG IOT HD | EMF Meter |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 2 months** |
| Monetization | — | Paid |
| Size | 204 MB | 58 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [bolide](https://appshunter.io/developer/373005177) | [PPLST Tech](https://appshunter.io/developer/1832748300) |

## What reviewers say

### BTG IOT HD

[App page](https://appshunter.io/ios/app/btg-iot-hd/id6443791172)

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

**In-app purchases:** none


### EMF Meter

[App page](https://appshunter.io/ios/app/emf-meter/id6756597802)

Monitor electromagnetic field levels and Bluetooth exposure with real-time readings and safety zone indicators. Understand signal strength and exposure levels around you for awareness at home, work, or while traveling.

**Highlights:** Real-time EMF readings, Bluetooth device scanning, Signal strength in dBm, Safety zone indicators, Visual EMF analytics, Dark and light themes

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

**In-app purchases:** none


## Frequently asked questions

### Is BTG IOT HD free?

BTG IOT HD is free to download, with no in-app purchases.

### Is EMF Meter free?

EMF Meter costs $0.99, with no in-app purchases.

### Do BTG IOT HD or EMF Meter have ads?

Neither BTG IOT HD nor EMF Meter shows ads.

### Which is updated more often, BTG IOT HD or EMF Meter?

BTG IOT HD ships an update every 19 months, and EMF Meter every 2 months. Most recently, BTG IOT HD was updated on October 17, 2026 and EMF Meter on October 7, 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.*