SupplyMaster

SupplyMaster

by TIMEGUARD LTD

2 ratings
88 reviews
Free

Details

  • Released
  • Updated
  • February 14, 2017
  • October 22, 2025

Features

SupplyMaster screenshot #1 for iPhone
SupplyMaster screenshot #2 for iPhone
SupplyMaster screenshot #3 for iPhone
SupplyMaster screenshot #4 for iPhone
iphone
ipad
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About

Control your immersion heater or lighting remotely via your phone or tablet. Save money by adjusting schedules from anywhere, ensuring you only use energy when needed. Offers multiple operating modes for flexible control.

Remote programming
Energy saving
Auto, Permanent Off, Permanent On modes
Holiday mode
Advance and Boost functions
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What's New in SupplyMaster

1.7.4

October 22, 2025

Fix some known issues

User reviews

Support withdrawn?

App no longer controls my Timeguard switch. Built in obsolescence? Just says “upgrade to FSTWIFITU”. Nope, will upgrade to another manufacturer that doesn’t dump customers with useless tech.

very basic app

it simply wont connect to my timeguard switch and keeps timing out when connecting to my wifi.. 2025 and we have Ai capabale of anything and here we are dealing with an app that feels like it was created on a zx spectrum from the 80’s.. who are these developer’s? 100% he is over 70

Terrible app

Trying to connect my cooker system via this app and it is terrible to set up if you change WiFi. I hate using it.

Dreadful app

This is so dire! It worked for a couple of months, then for no reason our user details were “invalid”.
We tried everything, changed passwords, user names, etc. ad infinitum.
The website has no sign in options, so we can’t change details there.
Therefore we have 2 very expensive, ordinary switches to control our Aga, as the WiFi element is unusable!
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Stay away

Just bad, bad, bad. Nothing good to say! Minus five stars!

Developer apps

FAQ

What does the SupplyMaster app do?

The SupplyMaster app allows you to conveniently program and control your immersion heater or lighting directly from your phone or tablet. You can make changes to your schedules from any location, helping you save money by turning off unwanted programs when you're away.

What are the key features of SupplyMaster?

Key features include remote programming of your heating and lighting, energy-saving capabilities by cancelling unwanted programs, and four distinct operating modes: Auto, Permanent off, Permanent on, and Holiday. It also offers advance and boost functions for added flexibility.

Is SupplyMaster free to use?

Based on the provided information, the SupplyMaster app is free to use. There are no mentions of subscription fees or in-app purchases, suggesting it is a complimentary utility for compatible Timeguard devices.

What devices is SupplyMaster compatible with?

The app is designed for use with the Timeguard FSTWiFi and FSTWiFiTGV WiFi controlled fused connection units. Ensure you have one of these compatible units to utilize the app's features.

How can SupplyMaster help me save money?

You can save money by using the app to cancel unwanted heating or lighting programs when you are unexpectedly absent. This ensures that you are not wasting energy on heating or lighting your home when it's not necessary, leading to reduced utility bills.