Thanks, I've just uploaded a trail version.  Because it was a puzzle
game that takes a certain length of time to do I just made it time out
after 2 minutes.  They can still keep using it, but only for 2 minutes
at a time, which is enough to do puzzle in easy level, but not in
medium or hard unless you are some kind of genius with very fast
fingers.  This way I also don't have to check if they are reinstalling
where one would have to leave some kind of data on the phone or keep a
record of owners in a remote database or something like that.  I think
the idea of tracking usage and a link direct to the market is a good
one.  But I don't know how you tell what the exact direct android
market URL to an application is on the phone.  Anyway, thank you for
your advice.  I think when I make something a bit larger/better I
might go about spend more time on such things.  I did put a hit
counter on the associated web site at least just to see if anyone
visits the site.  If it gets busy, then maybe I could put pay per
click adverts on it or something, but I doubt it will get that busy.

On Jan 2, 5:06 am, schwiz <[email protected]> wrote:
> upload a paid version too, and in the free version keep track of how
> many times they play or how long they play with preferences and then
> don't allow them to start a new game and also give them a button to
> take them directly to the market with your paid version.
>
> On Dec 31 2009, 10:49 am, "[email protected]"
>
> <[email protected]> wrote:
> > Hi, I already mentioned this briefly in another post as part of
> > another publishing topic.
>
> > But I think it is pretty important for a lot of us to know good ways
> > to make free versions that can't be cracked too easily etc.  After all
> > most people just download the free stuff, I know I do, so its
> > important for numbers.
>
> > I just made a game called ScrollSlider and I want to make a free
> > version with limited evaluation period perhaps, but I could use some
> > advice on how to do it.  I'm also having problems with data
> > persistence as views appear and disappear and managing game loop view
> > thread accordingly.
>
> > Cheers in advance for any tips,
>
> > Dan
>
> >www.cuffedtothekeyboard.com

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