OJ Microline® UWG4 is a lifestyle app developed by OJ Electronics.
Download Statistics
OJ Microline® UWG4 has been downloaded 5.3 thousand times. In the last 30 days, the app was downloaded 42 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 FREE to download. The APK download 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.
Description
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.
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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.
Google Play Rankings for OJ Microline® UWG4
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Technologies used by OJ Microline® UWG4
9 permissions·5 libraries
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