1. Click the Settings icon on the Home screen.
2. Click iTunes Store & App Store in the menu on the left side.
3. Click on your Apple ID (top right).
4. Click Show Apple ID. Enter password if requested.
5. Click on Subscriptions
6. In the list, select the subscription you want to cancel.
7. Select the "Cancel subscription" option.
The subscription will be interrupted at the end of the current accounting period.
