New themes can be purchased for Notability on iPhone and iPad. Purchased themes can be used on all of your iOS devices, no matter which one you used to purchase the themes. To use themes on a device that wasn't used to purchase them, follow these steps:
- Go to Notability's Settings.
- Tap Themes.
- Scroll to the bottom.
- Tap 'Restore Purchases'.
This will let you access any themes you've purchased.