You can get Premium Access Subscription that allows you to unlock unlimited pictures, get rid of interstitials and banner ads, and remove watermarks.
Weekly subscription with 3-day free trial period is $7.99, monthly $18.99, and annually $69.99 or equal to the same price tier as Apple App Store Matrix determines as the equivalent of subscription price in USD.
Payment will be charged to iTunes Account at confirmation of purchase.
Subscription will be automatically renewed for the same price and duration period, auto-renew can be turned off at least 24 hours before the end of the current period.
Your account will be charged for the subscription fee within 24 hours prior to the end of the current period for the price initially selected.
Subscriptions may be managed by you and auto-renewal may be turned off by going to the user's iTunes Account Settings. For more information please visit the link https://support.apple.com/en-us/HT202039.
No cancellation of the current subscription is allowed during the active subscription period.
Unused portion of a free-trial period will be forfeited when a user decides to subscribe.