How can I change from a monthly to a yearly subscription?

If you are currently on a monthly subscription plan and would like to change to a yearly subscription, please follow these steps:

iPhone:

1. Open the Settings app.
2. Select the top entry, which is your name, followed by Apple ID, iCloud, iTunes and App Store.
3. Tap iTunes & App Store.
4. Tap Apple ID: yourname@email.com
5. Tap View Apple ID.
6. Tap Subscriptions.
7. Scroll to and tap on TrapCall Subscription.
8. Tap TrapCall Yearly Membership.

Desktop:

1. Open iTunes on your Mac or PC.
2. In the Account menu select View My Account…
3. In the Settings section, select Manage next to Subscriptions.
4. Select TrapCall Subscription from the list of apps.
5. Choose TrapCall Yearly Membership (1 Year).
6. Select Done.