HOW DO YOU SAVE A DOWNLOADED MOBI FILE FROM A PUBLISHER TO BOOKS
HOW DO YOU SAVE A DOWNLOADED MOBI FILE FROM A PUBLISHER TO BOOKS
iPhone 5, iOS 10
AFAIK, it is not possible to directly convert/read MOBI files into the Books app on an iOS device. Instead, you would need to use something like the Kindle or MOBI Reader app for accessing them.
Ref: How to Open Mobi Files on iPhone or iPad - wikiHow