I purchased Ventusky with a lifetime licence

A few years ago, I purchased Ventusky with a lifetime licence. However, I can now see that my licence is set to expire on July 8. This seems inconsistent with the purchase terms from a few years ago. Could you please check this and confirm why the licence is showing an expiry date? Thank you.

What do you mean by "lifetime licence"? I can see that the subscription paired with your account is from Android. There used to be a one-time paid version of the app, but it was only for iOS.