# dooplay vs NVR UMViewer

The clearest difference is iOS requirement: dooplay at 13.4 against NVR UMViewer's 15.1. 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.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on June 12, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | dooplay | NVR UMViewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dooplay/id6504112251/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Free | — |
| Size | 28 MB | 43 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Doosign Co., Ltd](https://appshunter.io/developer/1702449791) | [DongHyuk Kim](https://appshunter.io/developer/1436315516) |

## What reviewers say

### dooplay

[App page](https://appshunter.io/ios/app/dooplay/id6504112251)

Control LED signboards remotely or on-site. Set up network connections, manage device power, adjust brightness, and send playback content. Edit text, images, animations, and videos for dynamic displays.

**Highlights:** WIFI connection setup via Bluetooth, Device power on/off and timing switch, Adjustable display brightness, Local/cloud preset program playback, Text, image, animation, video editing, Support for multiple file formats

**Features:** macOS Compatibility

**In-app purchases:** none


### NVR UMViewer

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is dooplay free?

dooplay 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 dooplay or NVR UMViewer have ads?

Neither dooplay nor NVR UMViewer shows ads.

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

dooplay ships an update weekly, and NVR UMViewer weekly. Most recently, dooplay was updated on June 12, 2026 and NVR UMViewer on September 18, 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.*