Get Android App Purchase Date
1 answer
This is not a 100% answer to your question, but you can get the time and date of the first installation of the application
http://developer.android.com/reference/android/content/pm/PackageInfo.html#firstInstallTime
long installTime = context.getPackageManager()
.getPackageInfo("com.some.package.name", 0)
.firstInstallTime;
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