WeatherStudio's retail price (Personal License) was initally a one-time flat fee of $99.99, however a discount is for now continued at a 20% rate:

Personal Usage
Commercial Licenses
Academic Licenses
$79.99 first copy
(Volume Discounts Offered)
$249.99 first copy
(Volume Discounts Offered)
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There are no subscriptions or recurring fees for WeatherStudio; only a one-time flat payment.