# 中興保全NVR影像監控系統Pro vs Alder NVR

The clearest difference is review sentiment: Alder NVR at 92% against 中興保全NVR影像監控系統Pro's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

中興保全NVR影像監控系統Pro ships an update every 4 months, Alder NVR every 6 months. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 中興保全NVR影像監控系統Pro | Alder NVR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (838 ratings)](https://appshunter.io/ios/app/alder-nvr/id6499489815/reviews)** |
| Number of ratings | — | **838** |
| Positive reviews | 0.0% of reviews | **92.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 6 months |
| Monetization | Free | Free |
| Size | 151 MB | 105 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TAIWAN SECOM CO., LTD.](https://appshunter.io/developer/439847914) | [Alder Holdings, LLC](https://appshunter.io/developer/1083656127) |

## What reviewers say

### 中興保全NVR影像監控系統Pro

[App page](https://appshunter.io/ios/app/nvrpro/id1380589488)

This free video monitoring application allows users to easily access live and recorded footage from Sunell products. It supports multiple channels, device management, and alarm information, offering a comprehensive solution for remote surveillance.

**Highlights:** H.264 & H.265 decoding, Live video preview (16+ channels), Playback video preview (1 channel), Device information management, Record video and snapshot management, Device alarm information management, 21 language support

**In-app purchases:** none


### Alder NVR

[App page](https://appshunter.io/ios/app/alder-nvr/id6499489815)

Monitor your home security system remotely with this app. It offers 2K resolution, AI technology, two-way audio, and color night vision for constant vigilance and peace of mind, whether you're at work or traveling.

**Highlights:** 2K Professional Security System, AI Technology, 2-way audio, Color night vision, Flashing lights for crime prevention, Monitor 2 to 8 cameras

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🚀 Best cameras
- 👍 Great feature
- 🔒 Nice to have peace of mind
- 👍 Awesome security system
- 👍 Excellent video quality

**What reviewers complain about**

- 🐛 Bad communication
- 🐛 Cameras constantly go out
- 🐛 App not responding
- 🐛 App down

**Reported bugs**

- Three out of four cameras not working
- App has totally stopped working

**Requested features**

- Next mobile app update


## Frequently asked questions

### Is 中興保全NVR影像監控系統Pro free?

中興保全NVR影像監控系統Pro is free to download, with no in-app purchases.

### Is Alder NVR free?

Alder NVR is free to download, with no in-app purchases.

### Do 中興保全NVR影像監控系統Pro or Alder NVR have ads?

Neither 中興保全NVR影像監控系統Pro nor Alder NVR shows ads.

### Which is updated more often, 中興保全NVR影像監控系統Pro or Alder NVR?

中興保全NVR影像監控系統Pro ships an update every 4 months, and Alder NVR every 6 months. Most recently, 中興保全NVR影像監控系統Pro was updated on October 4, 2026 and Alder NVR on October 17, 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.*