How do I change from an individual plan to a family plan?

If you already have an individual subscription, you can upgrade it to the Family Plan. Here's how:

• Go to the Account tab in Slopes
• Tap on Grab Another Pass
• Swipe to the left until you find the Family Plan
• Tap on Start Family

You can then add your family members by taking these steps:

• Go back to the Account tab in Slopes 
• Tap on Manage Family under the Slopes Premium section
• Tap on Invite
• Use the iOS share sheet to send them the invite link via your preferred app

When you upgrade, Apple will issue you with a pro-rated refund for the unused time on your individual pass. This can take a few business days to show up.

If you wish to downgrade to an individual pass after purchasing a Family Plan, unfortunately they do not offer the pro-rating option. Instead of taking effect immediately like an upgrade does, when your Family Plan comes up for renewal you will instead be opted down into the Annual Pass.