Stefan Matei

Applies a lightbox to all image links if and only if the screen is big enough to fit a lightbox. 
Because lightboxes on iPhones should be illegal.

Conditional Lightbox

Use a lightbox only if the screen is big enough.

carpemobile

This WordPress plugin gives you an easy way to add a Smart App Banner for your app (or any iOS app) to any of your pages. What sets this plugin above the others out there is that it makes it easy to add your app, affiliate identifier, affiliate campaign name and deep link app arguments. You can change any of these parameters for each page on your WordPress site.e
It is really easy to get up and running! Just download and install the plugin, then edit any page that you would like to have a Smart App Banner displayed for and enter the App Store ID for the app.

iOS Smart App Banner For Safari

iOS Smart App Banner For Safari plugin quickly and easily displays app banners for your web users who are using mobile Safari on iOS.

Conditional Lightbox vs iOS Smart App Banner For Safari