What was the worst phone OS you've used?

[Aikouka]

Windows Mobile 6.0 (and 6.5). I had an HTC TyTn II (AT&T Tilt), and it was pretty obvious that it was Windows CE with modem capabilities tacked on.

 

[sweenish]

Android <5.x

Laggy, horrible battery drain, crashprone. It is a wonder that android was able to get any marketshare with the state of android then.

Eh. 5.0 and 4.3 and 4.4 punch some holes in the statement.

I would safely say that Gingerbread and earlier Android was a bit awful. It held on because of the nature of Android, i.e. more freedom. ICS was a sea-change. 4.1 was a solid upgrade, 4.2 was a bit of a mess. It took until 4.3 for TRIM. KitKat was pretty darn solid. 5.0 brought another sea-change. And some horrendous memory leaks. 5.1 fixed it up decently. And from there the upgrades have consistently improved the Lollipop base.

Android's history is a bit too shaky to make a statement like this, unless the statement covers such a short span to otherwise be useless.

 

[WhiteNoise]

On a cell phone? Windows 8. I loved my old Nokia Lumia 1020 with it's 41mp camera but damn the OS killed it for me. I went from an iPhone 4s to that and regretted it for a very long time. The camera in it though was amazing.

So yeah...worst OS for me was Windows 8.

 

[0H4U]

Maemo for the typical rabid-OSS user community.

My time with the N900 in particular was definitely a love-hate experience. A lot like Windows Phone/Mobile 10 in that way...

 

[glenn1]

Blackberry

This man speaks truth.

 

[Crono]

BB OS 4.7 on the Storm

 

[tsupersonic]

Android preICS was kinda bad. That was when I actually preferred a skin (primarily HTC Sense) to add necessary basic features. I am also not liking Nougat right now - primarily for the horrible battery drain issues.

 

[Rifter]

IOS without a doubt, to locked down. I like the ability to choose my OS/launcher.

 

[StinkyPinky]

IOS is very bland, it really needs an update to modernise it.

But early android touchwiz was really bad.

 

[Yakk]

iOS... was stuck with an iPhone 6s for work earlier this year for the first time and it was driving nuts. Pushed to have it changed 5 months later.

 

[jhu]

Whatever OS is on the Avaya wifi phone at work.

 

[maevinj]

BB OS 4.7 on the Storm

This x1000

 

[Winston Marmaduke III]

I'd say iOS for me. Not saying it's the worst, just the worst I've used. I just prefer Android.

 

[Kapav]

Early days Android definitely was a lot more function over form. iOS as a daily driver is fine in my opinion, the experienced is polished and clean. It does feel pretty sanitized though because of it's locked down, "my way or the highway" nature.