# OPUS ONE - DAVV — from the Virtual View

> Repurpose old smartphones into secure, real-time home security and automation cameras. (iPhone/iPad app by OPUS ONE INC..)

- Source: https://appshunter.io/ios/app/opus-one-davv/id1323985659 (this page in markdown: same URL + `.md`)
- Developer: [OPUS ONE INC.](https://appshunter.io/developer/1122008663)
- Category: Lifestyle
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 56 MB
- Languages: English, Japanese, Korean
- Released: 2019-04-25
- Data updated: 2026-07-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/opus-one-davv/id1323985659/reviews.md

## What is OPUS ONE?

Introducing DAVV Smart Cradle:   
 •  SAFE from Hacking - Securer than CCTV
 •  No Monthly Cost !!
 •  Optimized for iOS 11.0 (or higher), it's a home security & automation App for all users upcycling old smartphone.  

Welcome to the Safe & Fast "Real-Time Communication" Life !
 •  Technically using Web-RTC between the Camera (Sender) and the Viewer (Receiver), they directly communicate (not through the typical IP-Server). 
 •  All materials are going to be uploaded to Google/Dropbox storage. 
 •  It's hard for hackers to trespass and take your video footage.


It is very useful as a Home Security Camera, Baby Monitor, Pet Cam, and for Caring Parents/Elders.
Check features below; 

1.  Easy Log-in through Google or Facebook ID
2.  Fast Connectivity under Wifi/3G/4G and 5G
3.  Motion Detection - automatically record the scenes for 15 sec. while sending a warning alarm.
4.  2-way Voice Talk
5.  Switching Camera - Front & Rear

6.  Flash On/Off
7.  Night View Mode
8.  Video Recording 
9.  Storage Service - Google Cloud or Dropbox (for Free 15GB / 2GB)
10.  Privacy Mode 
11.  Charging Dock - Keep charging user's Old Smartphone


Furthermore,
DAVV is not only for the security purpose like CCTV, but also provides Home Automation utilizing various smart functions in mobile itself.

Oh, by the way, DAVV app requires 'Device Administrator Privileges' for the "Screen lock" feature.
Once your app works in camera mode, it will automatically lock the screen to conserve battery power.
Please don't forget to allow registration on log-in process.


Thank you very much !

Team DAVV / OPUS ONE Inc.

## Key features

- Secure, hack-resistant design
- Real-time communication via Web-RTC
- Motion detection with alarms
- Two-way voice talk
- Cloud storage integration (Google/Dropbox)
- Night view and flash control

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/opus-one-davv/id1323985659/reviews.md

### 5/5 — 괜찮은 앱

*2020-01-31, version 1.0.13*

사용하기 편리합니다.

### 2/5 — 에러가 자꾸 발생하는데

*2020-01-20, version 1.0.11*

어제부터 이용 중인데 갑자기
An internal error has occured 라고 뜨면서
로그인이 안되네요. 고객센터도 없고 이건 뭐 어떻게 해결해야 합니까;

## Frequently asked questions about OPUS ONE

### What is OPUS ONE - DAVV used for?

OPUS ONE - DAVV allows you to repurpose an old smartphone into a home security camera, baby monitor, or pet cam. It provides real-time video streaming, motion detection, and two-way audio communication.

### Is OPUS ONE - DAVV free to use?

Yes, OPUS ONE - DAVV is completely free to use with no monthly costs. The app is available for free download and does not require any subscription fees for its core functionality.

### How secure is OPUS ONE - DAVV?

The app is designed to be secure from hacking, utilizing Web-RTC for direct communication between devices, which is technically more secure than traditional IP servers. It also offers optional cloud storage for your video footage.

### What are the storage options for OPUS ONE - DAVV?

You can store your video recordings using Google Drive or Dropbox. Free tiers offer 15GB for Google Drive and 2GB for Dropbox, allowing you to keep your footage safe.

### Does OPUS ONE - DAVV have motion detection?

Yes, OPUS ONE - DAVV features motion detection. When motion is detected, it automatically records a 15-second clip and sends a warning alarm to your viewing device.

### What devices is OPUS ONE - DAVV compatible with?

OPUS ONE - DAVV is optimized for iOS 11.0 or higher and is available on iPhone, iPad, and iPod devices. It requires 'Device Administrator Privileges' for the screen lock feature.

### How often is OPUS ONE - DAVV updated?

The latest version of OPUS ONE - DAVV is 1.0.14, which was released on February 6, 2020. Updates are provided by the developer, OPUS ONE INC., to improve functionality and security.

### Can I talk to someone through OPUS ONE - DAVV?

Yes, OPUS ONE - DAVV supports two-way voice talk. This feature allows you to communicate with individuals or pets in the room where the camera is placed.

## Version history (last 1 release)

### 1.0.14 — 2020-02-06

Headset sound output support.

## Apps similar to OPUS ONE

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Beanstalk - Find Things to Do](https://appshunter.io/ios/app/beanstalk-find-things-to-do/id6443885099) | 4.8 (27) | Free | Lifestyle |
| [Mental Note: AI Mood Diary](https://appshunter.io/ios/app/mental-note-ai-mood-diary/id6460934704) | 1.0 (1) | Free | Lifestyle |
| [DONT. Challenges Tracker](https://appshunter.io/ios/app/dont-challenges-tracker/id1552546494) | 5.0 (1) | Free | Lifestyle |
| [Security Camera: Watchful Cam](https://appshunter.io/ios/app/security-camera-watchful-cam/id6451049580) | 4.5 (134) | Free | Lifestyle |
| [MyHomi](https://appshunter.io/ios/app/myhomi/id1497946218) | 5.0 (2) | Free | Lifestyle |
| [Stilla™ Motion](https://appshunter.io/ios/app/stilla-motion/id1220110252) | 3.8 (16) | Free | Lifestyle |

## More apps by OPUS ONE INC.

- [OPUS ONE SMART UMBRELLA JONAS](https://appshunter.io/ios/app/opus-one-smart-umbrella-jonas/id1122008664)
- [XINGO Dancing Robot Speaker](https://appshunter.io/ios/app/xingo-dancing-robot-speaker/id1502063441)
- [시니어 헬스케어 서비스 린온 LeanOn](https://appshunter.io/ios/app/leanon/id1506863359)
- [닥터온](https://appshunter.io/ios/app/id1565924524)

All apps by OPUS ONE INC.: https://appshunter.io/developer/1122008663

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-04.*