A FREE version of the app is available, as well as a free trial period for 3 days
How to use my free trial period
Open the Profile tab → Click on the Store icon → Select a subscription plan → Start a trial period.
• If you signed up for a free trial but don’t want to subscribe to the app, cancel your free trial subscription at least 24 hours before the end of the trial period.
• If you didn’t cancel your trial subscription, payment for the subscription will be automatically charged from your iTunes account.