# Alder NVR vs NVR UMViewer

The clearest difference is update cadence: NVR UMViewer at weekly against Alder NVR's every 6 months. Alder NVR's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Alder NVR ships an update every 6 months, NVR UMViewer weekly. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Alder NVR | NVR UMViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (884 ratings)](https://appshunter.io/ios/app/alder-nvr/id6499489815/reviews)** | — |
| Number of ratings | **884** | — |
| Positive reviews | 92.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Free | — |
| Size | 105 MB | 43 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Alder Holdings, LLC](https://appshunter.io/developer/1083656127) | [DongHyuk Kim](https://appshunter.io/developer/1436315516) |

## What reviewers say

### 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


### NVR UMViewer

[App page](https://appshunter.io/ios/app/nvr-umviewer/id6749358031)

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

**In-app purchases:** none


## Frequently asked questions

### Is Alder NVR free?

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

### Is NVR UMViewer free?

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

### Do Alder NVR or NVR UMViewer have ads?

Neither Alder NVR nor NVR UMViewer shows ads.

### Which is updated more often, Alder NVR or NVR UMViewer?

Alder NVR ships an update every 6 months, and NVR UMViewer weekly. Most recently, Alder NVR was updated on November 4, 2026 and NVR UMViewer on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*