# Linux NVR Mobile Viewer vs EYE4 NVR2

The clearest difference is update cadence: Linux NVR Mobile Viewer at every 2 months against EYE4 NVR2's every 21 months. EYE4 NVR2's advantage is iOS requirement (8.0 vs 15.0). On price, review sentiment, 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.

Linux NVR Mobile Viewer ships an update every 2 months, EYE4 NVR2 every 21 months. The most recent releases landed on October 1, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Linux NVR Mobile Viewer | EYE4 NVR2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (4 ratings)](https://appshunter.io/ios/app/eye4-nvr2/id1216925126/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 21 months |
| Monetization | Free | Free |
| Size | 71 MB | 63 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EMSTONE](https://appshunter.io/developer/561848811) | [Shenzhen Vstarcam Technology Co., Ltd.](https://appshunter.io/developer/535476497) |

## What reviewers say

### Linux NVR Mobile Viewer

[App page](https://appshunter.io/ios/app/linux-nvr-mobile-viewer/id561848768)

Monitor live camera feeds from your NVR/DVR devices. View multiple cameras simultaneously in various grid layouts and control PTZ functions. Receive event notifications for enhanced security.

**Highlights:** NVR/DVR device management, Live camera monitoring, Multi-camera grid layouts, PTZ control, Event notifications

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

**In-app purchases:** none


### EYE4 NVR2

[App page](https://appshunter.io/ios/app/eye4-nvr2/id1216925126)

Access and manage your security cameras remotely. View live feeds, playback recordings, and control PTZ functions over various network connections. Features include multi-view previews, real-time alarms, and local storage options.

**Highlights:** Remote video viewing over Wi-Fi/2G/3G/4G, P2P network penetration with QR code scanning, IP and domain direct connection, PTZ control and preset functions, Remote playback and real-time alarms, Multi-view preview and local recording

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

**In-app purchases:** none


## Frequently asked questions

### Is Linux NVR Mobile Viewer free?

Linux NVR Mobile Viewer is free to download, with no in-app purchases.

### Is EYE4 NVR2 free?

EYE4 NVR2 is free to download, with no in-app purchases.

### Do Linux NVR Mobile Viewer or EYE4 NVR2 have ads?

Neither Linux NVR Mobile Viewer nor EYE4 NVR2 shows ads.

### Which is updated more often, Linux NVR Mobile Viewer or EYE4 NVR2?

Linux NVR Mobile Viewer ships an update every 2 months, and EYE4 NVR2 every 21 months. Most recently, Linux NVR Mobile Viewer was updated on October 1, 2026 and EYE4 NVR2 on October 6, 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.*