Go to Settings of your device -> iTunes & App Store -> Apple ID -> Subscriptions -> Everpix Live Premium and choose new subscription plan.
You can turn off auto-renewal at any time from your iTunes account settings, but refunds won’t be provided for any unused portion of the subscription period.
When free trial ends it automatically converts to a paid weekly subscription, unless you turned off auto-renewal at least 24 hours before the end of the current trial period.
SUBSCRIPTION: Subscription gives you unlimited access to the full library of extremely beautiful live wallpapers, that are constantly replenished by new ones.
You can, also change your subscription plan in your iTunes account settings.