Alley

The Connect to Apple Music plugin enables you to add songs, albums and artists through Apple Music badges, links and widgets on your WordPress site.
This plugin relies on <a href="https://developer.apple.com/documentation/applemusicapi" rel="nofollow ugc">Apple Music’s API</a> for its operation. Their privacy policy can be found <a href="https://www.apple.com/legal/privacy/en-ww/" rel="nofollow ugc">here</a>.

Connect to Apple Music

The Connect to Apple Music plugin enables you to add songs, albums and artists through Apple Music badges, links and widgets on your Wordpress site.

stephend

This is a WordPress plugin that allows you to use the Smart App Banners with your 
WordPress blog.
<a href="https://developer.apple.com/library/ios/#documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html#//apple_ref/doc/uid/TP40002051-CH6-SW1" rel="nofollow ugc">According to Apple</a>, Smart App Banners:
<blockquote>
vastly improve users’ browsing experience compared to other promotional methods. 
 As banners are implemented in iOS 6, they will provide a consistent look and 
 feel across the web that users will come to recognize. Users will trust that tapping the 
 banner will take them to the App Store and not a third-party advertisement. They will 
 appreciate that banners are presented unobtrusively at the top of a webpage, instead of 
 as a full-screen ad interrupting the web content. And with a large and prominent 
 close button, a banner is easy for users to dismiss.
</blockquote>
It’s really simple to use. In short, you download and activate the plugin. On pages and posts you should find a “Smart App Banner” settings box. If you want the Smart App Banner to appear on this page then enter the App ID of your application here. You can also enter affiliate data and an app argument here.
If you want to display a banner on the home page there’s a setting screen (Settings -> Smart App Banner) where you can enter the App ID.
You can find the App ID in iTunes Connect, using the 
<a href="https://itunes.apple.com/linkmaker/" rel="nofollow ugc">iTunes Link Maker</a> or if the iTunes URL for your 
app looks like this:
https://itunes.apple.com/us/app/rootn-tootn-baby-feed-timer/id530589336?ls=1&mt=8
Then your ID is “530589336”.
The other two fields are optional.
The affiliate data field varies depending on the affiliate. The most common is PHG, where the value looks like “at=AFFILIATE_TOKEN” or “at=AFFILIATE_TOKEN&ct=CAMPAIGN” (without the quotes). You can find the token when you sign into the PHG website. The campaign is just some text you use to identify a particular marketing campaign.
So I might have “at=11lmMT&ct=wordpress” on the product pages of my website. Check the documentation to find your affiliate token and confirm the format.
<a href="https://developer.apple.com/library/ios/documentation/AppleApplications/Reference/SafariWebContent/PromotingAppswithAppBanners/PromotingAppswithAppBanners.html" rel="nofollow ugc">According to the documentation</a>, the app argument value is:
<blockquote>
A URL that provides context to your native app. If you include this, and the user has your 
 app installed, she can jump from your website to the corresponding position in your iOS app.
</blockquote>
This plugin does not restrict or validate what you put here.
<blockquote>
You can format it however you’d like, as long as it is a valid URL.
</blockquote>

Smart App Banner

This is a WordPress plugin that allows you to use Smart App Banners, introduced in iOS 6, with your WordPress blog.

Connect to Apple Music vs Smart App Banner