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Android Apps > Lifestyle > OJ Microline® UWG4
OJ Microline® UWG4 icon

OJ Microline® UWG4

by OJ Electronics · Lifestyle · Free
On Google Play since October 2015 · Data updated 2026-10-21
Google Play

OJ Microline® UWG4 is made and published by OJ Electronics. AppBrain is an independent app data site and isn't affiliated with OJ Electronics. The app name, icon, screenshots and description belong to OJ Electronics and are shown as published on Google Play.

AppBrain's verdict

EstablishedNiche
Total installs
5.4 thousand
Rating on Google Play
2.56
28 ratings
Last updated
August 14, 2025

OJ Microline® UWG4 is a niche app, with 5.4 thousand installs. It doesn't have enough ratings yet to judge what users think.

Installs

Tracked by AppBrain
Last 30 days
78
Play install range
5+ thousand
Launched
October 2015

Installs over time

OJ Microline® UWG4 has been installed 5.4 thousand times. Over the past 30 days, it has been installed 78 times.

Rankings

Google Play top charts

Google Play Rankings for OJ Microline® UWG4

This app is not ranked

Competitors

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Also available on the App Store

OJ Microline® UWG4 icon OJ Microline® UWG4
OJ ELECTRONICS AS
2.0
Free
33 ratings

Releases

Updates seen on Google Play
Version
1.8.0
Launched
October 2015
  • Apr 29, 2026Installs5,000+ installs
  • Aug 14, 2025UpdateVersion 1.8.0
  • Aug 19, 2024UpdateVersion 1.7.0
  • Mar 31, 2023UpdateVersion 1.0.7
  • Mar 8, 2023UpdateVersion 1.0.7
Show all changes Show fewer

User feedback

Ratings and reviews on Google Play

Google Play Rating history and histogram

4
1
7
4
9

Comments on OJ Microline® UWG4 for Android

★★★★☆ Joffre Roberts · Dec 16, 2025
App will not boot half the time and when it does, there is major latency. You press a screen icon and seven seconds later it reacts. Unable to effect any changes in the programming remotely. Can't even turn it off or switch modes, it refuses to accept any changes. UPDATE: Have worked with the app to control floor heaters now for three years and during that time most bugs have been fixed. It has proven to be one of our better lifestyle apps. Wish it worked with Alexa though....
★★★★★ Tom Reynolds · Dec 1, 2019
Very nice simple interface to my floor heating controller. Easy to set up. Works perfectly. I love that I can monitor and control my floor heat from anywhere. Easy to make sure the floor is warm before we get home.
★☆☆☆☆ A Google user · Jan 18, 2018
1) you "cannot" power "off" the radiant floors just like the Honeywell Total Connect App. Really? 2) I tried to change the start/stop schedule times and changes are happening, but it seems a slow update response. I clicked on Save, exit the Microline App, re-started process, logging again, etc. and it seems to "slow" refres- Masri
★☆☆☆☆ Matthew Shapiro · May 23, 2021
App is suddenly showing my floor as set for 32 F and with an actual temp of 80 F. The latter is the correct set-point, confirmed by checking the stat. Changing the set point in the app also doesn't work anymore, the stat never updates. The app hasn't been updated in months, so this must be a server-side break. I've confirmed the stat is successfully hitting the OJT servers, so it's not some weird incorrectly-handled reachability issue either.
★☆☆☆☆ Matthias Moser · Dec 2, 2022
Does not show any of my configured thermostats... App seems broken.

Technology

Found in the app by AppBrain
Ads
No ads
Price
Free
Libraries
5
App size
8.87 MB
Needs Android
4.0+
Content rating
Everyone

Technologies used by OJ Microline® UWG4

9 permissions · 5 libraries
Subscribe to see full permission and library details

About the app and developer

About OJ Microline® UWG4

OJ Microline® UWG4 is a lifestyle app developed by OJ Electronics.

Install Statistics

OJ Microline® UWG4 has been installed 5.4 thousand times. In the last 30 days, the app was installed 78 times.

User Ratings

OJ Microline® UWG4 is rated 2.56 out of 5 stars. The rating is based on 28 ratings.

App Information

OJ Microline® UWG4 is freely available from Google Play. The app size is 8.87 MB. The latest version available is 1.8.0. The last update was on August 14, 2025.

Technical Requirements

OJ Microline® UWG4 requires Android 4.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play since October 2015.

App Performance Report

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Developer information for OJ Electronics

OJ Electronics

mobileapps@ojelectronics.com

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Store listing

By OJ Electronics, from Google Play

“The OJ Microline app lets you make the most of your OJ Microline® thermostats”

OJ Microline® UWG4 Screenshot 1 of 6
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OJ Microline® UWG4 Screenshot 4 of 6
OJ Microline® UWG4 Screenshot 5 of 6
OJ Microline® UWG4 Screenshot 6 of 6
Screenshots by OJ Electronics, from the Google Play listing
Description by OJ Electronics Written by the developer, not by AppBrain. Click to read.
The OJ Microline® UWG4 app lets you make the most of your OJ Microline® UWG4 Touch thermostats: use the app to remote control your home heating system from any location.

Like the thermostats themselves, the app is entirely intuitive and easy to handle – making it simpler than ever to ensure maximum savings on your heating bill while still enjoying a warm welcome every time you step into your home.

• View and set temperatures
• View your heating schedule – and change it
• Set your heating system to vacation mode
• View your energy log

View and set temperatures: You can instantly see the current temperature in all your rooms and locations fitted with OJ Microline® UWG4 Touch thermostats. And make any adjustments you want. Want your beach house heated for your weekend visit? Need the guest bedroom warmed up for an unexpected visitor? Or your bathroom ready for a nice, long soak when you get home? No problem.

View and change your heating schedule: One of the key benefits of your OJ Microline® Touch thermostat is its schedule function, where the thermostat automatically adjusts heating levels to match your usual timetable. However, sometimes you need a bit of flexibility, and this app lets you override the schedule to adjust temperatures as you wish – from any location including your home.

1. Fast-forward to the next scheduled change (e.g. to turn up the heat because you’re coming home early)
2. Make instant temporary adjustments (for example, you might want to turn down the heat everywhere for a good spring cleaning where every window is open)

Set your heating system to vacation mode: At times your heating schedule will need adjusting because you’re going away on vacation or on business. With the OJ Microline® UWG4 app you can plan those adjustments whenever you have a spare moment – and time them to take effect when you need them to. That way, you can walk out the door safe in the knowledge that you won’t waste money on heating an empty house – and that you’ll still get a warm welcome on your return.

View your energy log: The app lets you monitor your heating system’s current and past energy consumption at any time and from any location.

The app works with the WLAN version of OJ Microline® Touch thermostats (UWG4)

• View and change your heating schedule
• View and change heating settings
• View and set indoor temperatures
• Access multiple OJ Microline® Touch thermostats
• Access multiple locations fitted with OJ Microline® Touch thermostats
• Set units to Standard US or Metric
• Choose between Fahrenheit or Celsius
• 24-hour or 12-hour clock
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