thanks
On Jul 11, 9:28 am, John Smith <[email protected]> wrote:
> 2009/7/10 UK Android Apps UK Android Apps <[email protected]>
>
> > I want to release a demo version of my app.
>
> > I added a restriction that the app could only be used 5 times by
> > storing a counter in the db.
>
> > However a user can easily uninstall and install the demo again!
>
> > What the best way to manage this?
>
> Grab the unique device ID or SIM ID etc and send it to a database system
> that stores the count off line and tells the phone how many uses are left.
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