When I ever release a shareware app, what's a good way to protect from someone installing & using it for the trial period and then uninstalling and reinstalling it?
How can I mark the ORIGINAL install date? If all data added by an app is removed when the app is deleted, how does the app know it was previously installed?
TIA!
Don
Handspring Visor -> Handspring Visor Deluxe -> Palm Treo 650 on VZW -> Palm Treo 700p on VZW -> Blackberry Tour 9360 on VZW
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We store this entitlement data server-side, keyed by the unique device ID.
However, you can probably store this info on the device. As long as it is stored in a standard class in the persistent store, it will stay on the device until erased, even if the customer uninstalls your app.
Shareware Licensing? -
10-25-2009, 01:27 AM
