Why don't you just learn how to defeat the crack tool. I do in fact know
what you're talking about, since I've written one of these crack tools. If
you write and obfuscate your app correctly, these tools won't work. Your
solution will be crackable too, so there's no sense in wasting your time:
your app will be cracked if it's popular enough, there are sort of ways to
prevent this (using am account system on the server, etc...) but at the end
of the day it's not at all easy for an amateur to make their app crack
proof.

Kris
On Jul 28, 2013 8:58 AM, "AndroidYourself" <mon...@2aba.de> wrote:

> I want to do the same... LVL makes no sense, because its to easy to skip
> this check.
>
> But checks are absolutely necessary, because after a few hours you are
> published a new app, the whole world is downloading it from apk sites. You
> have to implement an individually check that have to be "cracked" manually
> by a cracker, not by a easy to use Crack-Tool. This needs a few weeks/month
> to publishing this at APK sites :)
>
> And when the old App-Version is cracked... you will publishing a new
> version with a little bit modified parameters and new functions... and this
> needs again cracking time. Its not uncrackable, but it annoys the APK
> downloaders, because they have to wait again and again for a new crack. So
> I think the most people will buy this app, because they absolutely want
> this app ;-)
>
> But I have the same question... how I can ask the Google Play Server for
> an Order-Number that entered the user in a Pop-Up Window to check this
> Order is paid?
> I've read a few days long mass of API documents, but its not working. Is
> there working complete sample code with PHP?
>
>
> On Saturday, July 27, 2013 7:52:53 AM UTC+2, TreKing wrote:
>>
>>
>> You don't really. Anyone that is determined enough to crack your app
>> eventually will. The question is how much time and effort do you want to
>> spend trying to put these checks and validations.
>>
>> I don't think you can do what you're asking, so your best option is to
>> use LVL as is.
>>
>> ------------------------------**------------------------------**
>> ------------------------------**-------
>> TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago
>> transit tracking app for Android-powered devices
>>
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