No ‘Copy to Kindle’ option on iPhone

[Colin99]

IPhone X running IOS 13.3, with CC 2.0.0. iPad Air with iOS 12.? And CC 2.0.0. My iPad has a ‘Copy to Kindle’ option (after selecting to ‘Read’ a book). My iPhone does not show this option. Both IOS devices show ‘send to Kindle’ as a ‘Read’ option. Any idea why my iPhone does not have the ‘Copy to kindle’ Option? I’m not sure, but I think that the Copy option just copies internally on the IOS device, whereas the ‘Send’ option goes via the email address. I’ve checked all the settings for both Kindle app and CC and they are all the same. Are there any diagnostics I can submit? Thanks for looking.