My android application should work only for 1 month after its release. What to do for that?
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My android application should work only for 1 month after its release. What to do for that?
Please see this question, it has a good answer.
I will give you my experience with trials. At first I tried just using the date on the phone, but then realized if they uninstall and re-install this can be bypassed. This could be fixed by storing the install date somewhere on the file system (hidden), but what happens if the user wipes data or finds the file?
I also tried to just check the date/time at a server anywhere (maybe your www site?), but this imposes restrictions on your application because they must have internet. Soon I realized the need for better license management, so the last solution was used.
The last solution would be to setup a server. You can use the device’s unique ID (whichever you choose – I went with the Bluetooth MAC ID because my application requires bluetooth as well), post to a server to check if the user has a trial, if they don’t I issue them one, if they do I check the expiration. Now I have complete control over when trials expire. Since my application is a business app that is used in the field, this is very handy if a potential buyer needs another week.
The only issue with the last solution is that if you plan on publishing to Market, you must use their payment system.
Good luck!