You can view your billing cycle and renewal dates by visiting your account subscription

Android Google Play users you will do this within your Google Play Account 

  1. Open the Google Play Store Play Store.
  2. Tap Menu Menuand thenAccountand thenSubscriptions.

IOS Apple App users you will do this within your Apple App Store Account
  1. On the Home screen, tap Settings.
  2. Tap iTunes & App Store.
  3. Tap your Apple ID at the top of the screen.
  4. Tap View Apple ID. You might need to sign in.
  5. Under Subscriptions, tap Manage.