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821

answers:

5

I am trying to find out how many of the active iPhone and iPod touch users have at least 3.0 OS installed.

I need to know if the percentage running 2.x is still considerable or not really.

I tried looking into AdMob stats, and other OS usage stats sites, but I can't get to see iPhone 2.x vs iPhone 3.x

+1  A: 

After a look around, I have found this (which hopefully, will be of some use to you): http://tapbots.com/blog/news/iphone-os-30-adoption-rate

Hope this helps!

(Data from: June 23rd, 2009)

Neurofluxation
hi, thanks, I've found this one too, but I think after the last Christmas (which was very strong for the iPod touch) the picture has definitely changed a lot. that's why I did put "current" in the title of my question
Ican Zilb
I think you will be lucky to find 2010 usage statistics this early in the year. If you do find any, please post up here though! Best of luck.
Neurofluxation
I know it'll be hard, I tought AdMob definitely has enough data to put together some stats, but ... no luck
Ican Zilb
+1  A: 

It's good to know the ratio 2.x VS 3.x but you may also ask yourself "Let's consider someone who is still using 2.x : is this person really a potential user of your app or an appstore user ?" . In my opinion : no.

So targeting below 3.0 does not make any sense IMHO.

yonel
+1  A: 

Quick note, referring to iPhone OS 2.1.1 in user agent is used by most bots which claim to be iPhone.

Esko
By bots you mean web spiders or something else? Do you have a link where I could read more ?
Ican Zilb
Web spiders mostly and then some applications which crawl through the web site to create some fancy-looking but practically pointless UI fluff (think of the 3D navigation thingies available for Google Image Search). No links available, but there's already close to a hundred lawyers from a dozen or so service providers who know of these and are proactively fighting against them. Additionally iPhone OS 2.1.1 is also one of the most popular jailbreaked OS' out there. Yeah, iPhone's popularity has somehow also allowed people to show their ugly side too...
Esko
+3  A: 

As of January 2010, shortly before the release of 3.1.3:

At around 30,000 downloads (mostly in Austria, some in Germany) for one of our free apps, there are fewer than 5% of devices still on 2.2.1 or older (as reported by UIDevice).

Less than a quarter was not on the latest OS Release (3.1.2 at the time).

hop
A: 

Check out flurry.com. They have a free SDK that take about two lines of code to start tracking all kinds of cool details like OS version, type of device, device version, location, what wireless carrier was used, WI-FI use, etc.

radesix
thanks that's a useful link
Ican Zilb