# EMF Meter vs CastNow Screen Share for IOS

The clearest difference is update cadence: CastNow Screen Share for IOS at every 9 days against EMF Meter's every 2 months. EMF Meter's advantage is iOS requirement (13.0 vs 15.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

EMF Meter costs $0.99 and CastNow Screen Share for IOS $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

EMF Meter ships an update every 2 months, CastNow Screen Share for IOS every 9 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | EMF Meter | CastNow Screen Share for IOS |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/castnow-screen-share-for-ios/id6795734574/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 58 MB | 16 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PPLST Tech](https://appshunter.io/developer/1832748300) | [新宇 刘](https://appshunter.io/developer/1877071117) |

## What reviewers say

### 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


### CastNow Screen Share for IOS

[App page](https://appshunter.io/ios/app/castnow-screen-share-for-ios/id6795734574)

Stream your iOS screen, camera, and microphone in real-time to any web browser. Enjoy crystal-clear two-way voice intercom with end-to-end encrypted P2P transmission. No account or app installation needed for viewers.

**Highlights:** Real-time screen streaming, Camera and microphone streaming, Two-way voice intercom, End-to-end encrypted P2P, No app installation for viewers, No account required

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EMF Meter free?

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

### Is CastNow Screen Share for IOS free?

CastNow Screen Share for IOS costs $0.99, with no in-app purchases.

### Do EMF Meter or CastNow Screen Share for IOS have ads?

Neither EMF Meter nor CastNow Screen Share for IOS shows ads.

### Which is updated more often, EMF Meter or CastNow Screen Share for IOS?

EMF Meter ships an update every 2 months, and CastNow Screen Share for IOS every 9 days. Most recently, EMF Meter was updated on October 30, 2026 and CastNow Screen Share for IOS on October 31, 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.*