With an email account/address that is so severly compromised, you may want to consider a new email account and address preferably an IMAP account for a number of reasons.
A 60 junk to one real email message ratio means you have inadvertently contributed to the problem and the email account provider has no spam filter at the server. Rendering any HTML included with spam/junk confirms that your email address is "known good" with the spammer that sent the message causing more spam/junk to be received. Clicking on any links included with a spam/junk message does the same. Providing your email address publicly for any reason also does the same. Spammers sell/trade their "known good" email address lists to other low-life spammers causing an endless cycle. Once the cat is that far out of the bag with an email address, there is no turning back. The iPhone's Mail app does not have a junk mail filter and may never have one, which wouldn't match the junk mail filter with the Mail app on your Mac anyway.
Get a new email address from an email account provider that supports IMAP access. Use the new email address to exchange email with family and friends ONLY. Use your existing severely compromised email address for online purchases and to be provided publicly. Never provide your new email address publicly for any reason. An IMAP account is specifically designed to be accessed with more than one email client with all server stored mailboxes kept synchronized with the server with each email client used to access the account. A POP account is from the early dark ages of email account access with an email client when most people had access to a single computer only and well before there were handheld cell phones and especially smart phones. A POP account is designed to be accessed with a single email client only.
