Upgrades to a Premium subscription are processed by Apple's App Store and will charged via your iTunes account. Milyo does not take part in the payment process.
To upgrade to Premium:
- Launch Milyo
- Tap Accounts in the bottom tab bar
- Choose Upgrade to Premium
- From the popup modal tap on Subscribe
- Next, from the subscription sheet, Double-Click side button
If you don't see the 'Double-Click side button' option, make sure you have added a payment method to your iPhone
