On Thu, Feb 3, 2011 at 5:03 PM, Mark Carter <mjc1...@googlemail.com> wrote:

> I was recently thinking about how to change an existing Lite/Pro combo to
> use in-app-upgrade instead.
>
> I can't see a nice way to do it. The best way I can think of is to
> introduce in-app billing to the Lite version and convert the Pro version
> into some kind of "pro key" token app. The Lite version would check for
> existence of this "pro key" app (and validate) if the in-app-upgrade had not
> been purchased.
>
> Does that work?
>

Yes, that would work.

There are apps that already use "pro keys". You'd just be adding a second
check with the in-app billing service for a license that's been purchased in
the past.

-- 
Trevor Johns
Developer Programs Engineer, Android
http://developer.android.com

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