First off, I'd highly recommend getting the app if you don't already have it! You can easily browse content and save it to your offline tab with a single tap!
Download it here ----> optimize.me/app 📲
If you don't have room for the app on your phone, or you'd prefer to stick with the browser version, read on!
When you open our (mobile friendly) site in Safari, you'll be able to view and download the PDF of any Note directly to your phone. When you click on it, you'll have the option to save it to iBooks. If you were do same via Chrome, that option doesn't show.
If you have the app downloaded, this option won't be available because clicking on content on the website will automatically open it up via the app.
If you have any questions, just ask! 👍
Zak & the Optimize Team
P.S. It works on iPad too!