The app includes several free articles so you can explore before buying. When you're ready to unlock the full collection, here's how:

1. Go to the Purchase screen

You can get there in two ways:

• Tap the Purchase link at the bottom of any free article, or
• Tap the menu button (top left corner) → Settings → Purchase

2. Complete your purchase

Tap the Purchase button, which displays the price in your local currency. Follow the prompts to complete checkout through the App Store.

This is a one-time purchase, not a subscription.