At Arcascope , we implemented universal/deep linking in Shift: The App for Shift Work . The nice people at Arcascope were kind enough to let me publish this doc I wrote about it. Universal linking allows url links to open an iOS app instead of opening the url in Safari. Here are a few tutorials: Apple guide , older Apple guide , Kodeco . Step 1: Create an apple-app-site-association file These are all over the internet: Square, Drizly, Alltrails, Arcascope, Apple There is an aasa validator which can be used to check the validity of your site’s aasa Aasas can be stored in root or in .well-known/ ← see Apple’s While the file cannot have a json suffix, it has to be of type json. To do that set the .htaccess file to.. <Files apple-app-site-association> ForceType application/json </Files> Apple’s documentation on creating the aasa file is helpful .…