Snoop has a free version and a subscription service, called Snoop Plus. Plus can be paid monthly at £4.99/month, or annually at £39.99/year.
If you have subscribed to Snoop Plus, you can check when your next payment is due by tapping the cog icon in the top left of the home screen and then tapping on 'Manage Snoop Plus subscription'.
Or you can see this and the amount of your next payment by visiting the App Store, Google Play Store or Huawei Gallery and checking your subscriptions registered there.
If you need any help, please just drop us a line at hello@snoop.app.