On Wednesday, 11 April 2012 16:22:11 UTC+1, latimerius wrote:
2012/4/11 Justin Anderson
> My paid app actually does nothing other than the LVL check
> through the service.Would it also be possible to initiate the LVL check from the free app?
Client-side security has to rely on obfuscation to some extent,
otherwise the attacker can simply find and disable the LVL check.
From what I understand the LVL code should ideally be intermingled
with unrelated code - but if it resides in an executable pretty much
by itself, doesn't it mean the check is easy, perhaps even trivial to
circumvent?I'm also leaning towards the two .apk solution but I thought I'd be
able to run the LVL check for the paid app from the free app.
One thing you could do is create the app as normal, put it on Play as a paid download (and have it function as a demo when not licensed), and provide a link to the .apk on your own website, with a prominent link on the Play page. Not as nice as if Play offered it for download intrinsically, and you'd probably run into trust issues with users unwilling to install an app from a 3rd party site (and it would require them to toggle the switch in settings to run too, wouldn't it?), but would basically allow for having 1 app do both jobs.
Iain
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