Upon subscribing, you will immediately receive the latest puzzle pack, and for the duration of the subscription, you will gain free access to every new puzzle pack upon its release.
The subscriptions packs can be downloaded from Login section -> Notifications tab.
You get the packs not at once, but as soon as they are released.
Monthly subscription costs $19.99 or equal to the same price tier that "Apple's App Store Price Matrix" determines in other currencies.
Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.
You may cancel a subscription anytime via the subscription settings through your iTunes account. This must be done 24 hours before the end of the subscription period to avoid being charged.
Note: to subscribe you need to be registered in Login section.
To learn more about Login, please click here.