I'm not sure how many developers will like your licensing terms,
especially the bit which prevents them from creating any form of
licensing solution of their own if they download your app. It's also
worth noting that you're statement preventing reverse-engineer doesn't
hold water in many jurisdictions (e.g. Europe where Article 6 of the
European Software Directive specifically allows it for certain
reasons, have a look about half way down the article at
http://www.aplf.org/mailer/issue113.html).

Don't get me wrong, it's always good to see innovation in this field,
but you might want to ease up on your license a little.

Al.

On May 5, 7:09 pm, dadical <keyes...@gmail.com> wrote:
> Hey Tim.
>
> You're correct that validating purchase with the market is a key piece
> of our solution.  Figuring out how exactly to do that using Google's
> binary market protocol in an efficient way (try doing everything that
> AAL does in a 35 KB library) was a fairly significant dev effort.
> What's more, balancing license generation, market API security, cross-
> Android version compatibility, customization, etc., and you've got a
> nice little chunk of work that we put into this solution.
>
> As for pricing, we'll see what the market will support.  In our own
> single app Screebl, we "lose" about $100/day in revenue to pirated
> apps, so $50 seems cheap.   I know that not all of that $100 will
> translate into sales, but some percentage will.  My point is it
> shouldn't take long for AAL to pay for itself.
>
> Dave
>
> On May 5, 1:23 pm, strazzere <str...@gmail.com> wrote:
>
>
>
>
>
> > Looking at your documentation, I'm assuming your making a call to the
> > market requesting the state of the application -- if I'm wrong, then
> > just disregard this information. If I'm right, I guess my only
> > question is why are you charging so much information for such a
> > simplistic method?
>
> > Don't get me wrong - that method would probably be the best one I've
> > seen yet on the market, but that's still a nice chunk of money to
> > charge for it.
>
> > -Tim
>
> > On May 4, 5:20 pm, dadical <keyes...@gmail.com> wrote:
>
> > > I've spent the last few weeks developing a new tool to stoppiracyof
> > > my paid apps on the Android Market.  In a nutshell, licensing is tied
> > > directly to purchase verification.  There is no license server to
> > > manage, no key for the user to enter.  User experience is basically
> > > uninterrupted from normal application purchase.
>
> > > I'm excited about this, as my paid apps are now reachingpiracyrates
> > > as high as 90% on some days,with the average somewhere around 75%.
> > > For pirated apps, purchase verification (and subsequently licensing)
> > > will fail after a certain number of attempts, and pirates will be left
> > > with anything from a "buy me" nag, to a disabled app (behavior is
> > > configurable).
>
> > > Android Market is the only supported purchase validation target so
> > > far.  Others will be forthcoming if demand warrants.
>
> > > This isn't a perfect solution (I have yet to find a perfect licensing
> > > solution), but I feel it is the best balance of security, features,
> > > and workflow that I've seen to date.
>
> > > You can find a write up, download, and purchasing information 
> > > here:http://keyeslabs.com/joomla/index.php/projects/auto-app-licensing
>
> > > I'll be looking forward to the comments, suggestions, and death
> > > threats.
>
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