# Net Analyze Defender vs Voltage Drop Calc NEC

The clearest difference is price: Net Analyze Defender at Free against Voltage Drop Calc NEC's $0.99. Voltage Drop Calc NEC's advantage is update cadence (every 3 days vs every 28 months) and iOS requirement (13.0 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Net Analyze Defender is free to download; Voltage Drop Calc NEC costs $0.99 up front. Net Analyze Defender sells 3 in-app purchases, starting at $1.49 per month and Voltage Drop Calc NEC sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Net Analyze Defender ships an update every 28 months, Voltage Drop Calc NEC every 3 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Net Analyze Defender | Voltage Drop Calc NEC |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.0 (6 ratings)](https://appshunter.io/ios/app/net-analyze-defender/id977005868/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 17 MB | 34 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [杰 刘](https://appshunter.io/developer/515634394) | [Rizvan Adzhoian](https://appshunter.io/developer/1891746079) |

## What reviewers say

### Net Analyze Defender

[App page](https://appshunter.io/ios/app/net-analyze-defender/id977005868)

This app offers comprehensive network diagnostics and a suite of tools to analyze connection status, speed, and latency. It helps users understand and troubleshoot their network performance with detailed tests and information.

**Highlights:** Live connection status and IP address, Full network assessment with speed and stability tests, Customizable ping tests with latency and packet loss, Download and upload speed measurements, Advanced tools like Traceroute, LAN Scan, and DNS lookup, WiFi information and SSL certificate viewer

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Subscription | $1.49 | per month |
| Yearly Pro Subscription | $14.99 | per year |
| Remove AD | $0.99 | one-time |


### Voltage Drop Calc NEC

[App page](https://appshunter.io/ios/app/voltage-drop-calc-nec/id6763312448)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Net Analyze Defender free?

Net Analyze Defender is free to download, with in-app purchases available.

### Is Voltage Drop Calc NEC free?

Voltage Drop Calc NEC costs $0.99, and also offers in-app purchases.

### Do Net Analyze Defender or Voltage Drop Calc NEC have ads?

Neither Net Analyze Defender nor Voltage Drop Calc NEC shows ads.

### Which is updated more often, Net Analyze Defender or Voltage Drop Calc NEC?

Net Analyze Defender ships an update every 28 months, and Voltage Drop Calc NEC every 3 days. Most recently, Net Analyze Defender was updated on October 29, 2026 and Voltage Drop Calc NEC on October 28, 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.*