Wow! They’re forcing us off the old app that—while not perfect—at least works fairly well. And for what? What problem are they trying to solve? This new app not only doesn’t even have the scheduling management capabilities of the retiring app, but its usability is awful and its intuitiveness nonexistent. You have to navigate through many places just to get to the control area, whereas the old app requires one tap of a tab. I searched for somewhere where I could specify the landing page upon startup to make it easier, but that doesn’t exist either. Tip to Coway: if you’re going to force people into a new app, at least make sure that it’s actually an improvement and that people won’t lose functionality. This is a huge downgrade. If this is the kind of treatment I can expect, I’ll never buy another product from them again. Absolutely terrible!!

I really want to love Coway. The purifier itself is a beautifully designed and brilliantly executed product. However the fact that I need the app to do basic functions like set a timer or turn the bright light off at night is pretty unfortunate considering how poorly Coway has executed on the app. Having to log in every time is annoying but fine if you can just set a routine and leave it but of course that’s not what happens. Automations (like turn of light at x time) work maybe a few time (if that) then stop. Now, every night, (unless I want a bright blue nightlight) I have to go to the app, log in, navigate to the device, scroll down to manage, down to lighting, switch to off.[3/4/26 update] The routines seem to be working now. Guessing Coway is slowly working through issues. Changed rating to 3/5

I didn’t think it was possible, but this app is even worse than the previous one. First, you have to re-register all of your devices, which is made more difficult because they can only connect to 2.4 GHz networks in isolation. Second, they eliminated custom schedules. They try to replace this with new “routines,” but the routines have far fewer options than were available in the previous app and it’s more difficult to navigate. For example, you cannot have a routine that changes the mode of your air purifier to low, medium, or high at specific times. I had a complex schedule of modes and lighting for daytime and nighttime, by weekdays and weekends, in the previous app. This new app does not support this functionality. I’m extremely disappointed and frustrated. My next smart air purifiers will not be from Coway.

Terrible upgrade. I loved the layout and simple intuitive userface of the old app (only issue was occasional connectivity issues). Why couldn’t the connectivity issue been fixed and everything left alone??? Coway took a decent app and made it MUCH MUCH worse. With this new one, they removed a lot of the old features including scheduling, turning off light, and reduced the characters allowed on the name of device. I quickly deleted the app and went back to using the old version. When that stops working, I will only use my 250S manually (and will no longer purchase any connected devices from Coway).