# 16 Relay Controller

> Utilities

Canonical page: [https://chrome-stats.com/d/id1541478119](https://chrome-stats.com/d/id1541478119)

## Overview

- **ID:** `id1541478119`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Mike Henry
- **Category:** Utilities
- **Version:** 1.3
- **Last updated:** 2026-08-11
- **First published:** 2020-12-14
- **Size:** 420 KB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/16-relay-controller/id1541478119)
- **Website:** [https://www.henrysolutions.com/iot](https://www.henrysolutions.com/iot)
- **Privacy policy:** [https://www.henrysolutions.com/privacy/relay/privacy\_16crelay.html](https://www.henrysolutions.com/privacy/relay/privacy_16crelay.html)

## Description

App to control henry solutions 16 Relay hardware devices.
The 16 Relay controller connects to an IOT device via web service calls.  The webservice endpoints you connect to is determined by the application settings.  The default IP address of the webservice for the relay controller is set to a non-routable IP address of 192.168.4.2.  The app only uses http and not https so it is only suitable for controlling IOT devices in a closed environment.
The 16 Relay controller is limited to sending only the following URL request to the IP address you enter in the settings:
http://[ip-address]/status
http://[ip-address]/status/[relay-number]
http://[ip-address]/on/[relay-number]
http://[ip-address]/off/[relay-number]
http://[ip-address]/allon
http://[ip-address]/alloff
http://[ip-address]/hb

## Rankings

- #1,849,732 — Overall

## Similar extensions and apps

- [SW16A](https://chrome-stats.com/d/id1582105414)
- [Relay Network](https://chrome-stats.com/d/id601314428)
- [WebSwitch 1216H HOME](https://chrome-stats.com/d/id1614106858)
- [RIoT Control](https://chrome-stats.com/d/id1611328171)
- [H1-Car Bluetooth Relay](https://chrome-stats.com/d/id1493901934)
- [Total Control](https://chrome-stats.com/d/id6451193673)
- [IO network 2](https://chrome-stats.com/d/id1490566133) — 1.00 / 5
- [RIoT Control Pro](https://chrome-stats.com/d/id1611332189)
- [HLK-DIO16](https://chrome-stats.com/d/id1444494500)
- [ControlHub](https://chrome-stats.com/d/id6504735554)
- [IP Controller](https://chrome-stats.com/d/id550401673)
- [WIFI-RELAY8](https://chrome-stats.com/d/id657294544)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1541478119)