Android Questions? Ask Android Device Experts for Answers ASAP
Open the Kindle app on your iPhone, then enter your Amazon account information and tap Sign In.
Your Kindle content should now appear under the Cloud tab.
If it tells you that your name or password ***** ***** then try logging in to the amazon.com website to check if they are correct.
Glad to hear you got it sorted!
Let me know if I can be of any further assistance.
Have a great day,