You can check your subscription status, if you have an active subscription, the start and renewal date, by viewing your Account Information.
You can see your Account Information by launching TrialPad, TranscriptPad, or DocReviewPad, and in the Case Selection screen tap on the Person icon in the top right. This will open the Account Information popover which will display your Subscription Start date and your Renewal Date.
If you tap on the Manage Subscription button it will take you to the Subscriptions page for your Apple ID which will list your Active and Expired subscriptions.