# W20

> Remote alarm system control and notification via phone, SMS, and app. (iPhone/iPad app by 传林 方.)

- Source: https://appshunter.io/ios/app/w20/id1319762118 (this page in markdown: same URL + `.md`)
- Developer: [传林 方](https://appshunter.io/developer/699727053)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 3.00/5 from 4 App Store ratings · 33 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 58 MB
- Languages: American English, German (Germany), Japanese, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2017-12-04
- Data updated: 2026-06-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/w20/id1319762118/reviews.md

## What is W20?

This is a multi-function alarm, can through the way of telephone or SMS control equipment, can also through the phone APP to control it.Can add the remote control on the equipment, magnetic door, infrared, such as accessories, installation area of the device in the event of an emergency it sets off the alarm at the same time through the APP send notifications to your phone.

## Key features

- Multi-function alarm system
- Remote control via phone call
- Remote control via SMS
- App-based control
- Emergency notifications
- Accessory integration (door sensors, infrared)

## Recent user reviews (10 of 33)

All indexed reviews: https://appshunter.io/ios/app/w20/id1319762118/reviews.md

### 3/5 — Costea catan

*2025-04-23, version 2.3*

buongiorno si po aggiornare applicazione non arrivano le notifiche con ios ultima generazione

### 3/5 — Не приходят push-уведомления

*2024-07-23, version 2.3*

На iPhone не приходят push-уведомления , о срабатывании сигнализации, как сделать?!!!!!

### 1/5 — Нет уведомлений

*2024-06-05, version 2.3*

Разработчики обновите приложение, после обновления IOS перестали приходить уведомления не только на телефон, даже в самой программе не видно событий по сигнализации

### 1/5 — English language

*2023-07-06, version 2.3*

Could you add English language?  I can’t change interface language after last update.

### 1/5 — No manda notificaciones

*2023-01-24, version 2.0*

Es una buena app, pero no se actualiza desde hace mucho tiempo y no envía notificaciones en iOS

### 1/5 — Arreglarlo ya

*2022-05-18, version 2.0*

Por favor actualizar app urgente y arreglar lo de las notificaciones, ahora mismo nuestras alarmas están inservibles.

### 3/5 — Ma quando aggiornate questa applicazione!??

*2021-12-17, version 2.0*

Gentili Sviluppatori e più di due anni che questa applicazione non riceve aggiornamenti! , con l’ultima versione di iOS e diventata instabile e di conseguenza i sistemi di allarme Wi-Fi KERUI risultano essere gestiti male .
Per favore aggiornate l’applicazione e risolvete i bug grazie !.

### 1/5 — Sin Wifi

*2021-11-10, version 2.0*

Kerui w20 no se conecta a la wifi con Iphone ios 15.1 la App W20 va fatal !!!!!

### 1/5 — Marche pas

*2021-07-26, version 2.0*

Impossible de se servir de l’alarme à distance à cause d’une app mal programmée qui ne marche pas…

### 1/5 — Imposible conectar con el wifi

*2021-07-25, version 2.0*

Es imposible conectar el Wifi,
Tienen que cambiar la app para que sea más sencillo configurar el wifi con la
Consola , no es intuitiva, nunca la pude conectar.  Una solución ya .

## Frequently asked questions about W20

### What does the W20 app do?

The W20 app allows you to control your multi-function alarm system remotely. You can arm or disarm the system, receive instant notifications in case of an emergency, and manage connected accessories.

### How can I control the alarm system with this app?

You can control the alarm system through the dedicated phone app. Additionally, the system supports control via telephone calls or SMS messages, offering multiple convenient ways to manage your security.

### Can I add accessories to the alarm system?

Yes, you can add various accessories to the alarm system, such as remote controls, magnetic door sensors, and infrared detectors. These accessories enhance the system's functionality and provide more comprehensive security coverage.

### What happens in an emergency?

In the event of an emergency, the device will set off the alarm. Simultaneously, it will send notifications directly to your phone via the app, ensuring you are immediately aware of any security breaches.

## Version history (last 5 releases)

### 2.3 — 2023-05-30

Fix known bugs

### 2.2 — 2023-05-23

Fix known bugs

### 2.1 — 2023-05-20

Optimize distribution network

### 2.0 — 2019-11-13

Update part of the term translation

### 1.9 — 2019-10-24

Fix the problem that ssid cannot be obtained under iOS13 system

## Apps similar to W20

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [HighSec Security](https://appshunter.io/ios/app/highsec-security/id6450320512) | — | Free | Utilities |
| [Power Failure Monitor](https://appshunter.io/ios/app/power-failure-monitor/id6450930809) | — | Free | Utilities |
| [Dowell iOne](https://appshunter.io/ios/app/dowell-ione/id6446160615) | — | Free | Utilities |
| [IST-MyDoor](https://appshunter.io/ios/app/ist-mydoor/id1370246240) | 3.0 (4) | Free | Utilities |
| [Finscan](https://appshunter.io/ios/app/finscan/id1559474998) | — | Free | Utilities |
| [Connect2Home](https://appshunter.io/ios/app/connect2home/id639949127) | — | Free | Utilities |

## More apps by 传林 方

- [GSM Smart Alarm System](https://appshunter.io/ios/app/gsm-smart-alarm-system/id896688363)
- [G19 Alarm System](https://appshunter.io/ios/app/g19-alarm-system/id958094154)
- [G18 Alarm System](https://appshunter.io/ios/app/g18-alarm-system/id1001001852)
- [S72](https://appshunter.io/ios/app/s72/id1016149071)
- [W2](https://appshunter.io/ios/app/w2/id1039606779)
- [W1 Alarm System](https://appshunter.io/ios/app/w1-alarm-system/id1041646478)

All apps by 传林 方: https://appshunter.io/developer/699727053

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*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 2026-06-08.*