Apps like ILovePDF, Google Chrome, and others have this feature in the 3rd row of the iOS share sheet where you can add a custom action like "Open in Chrome" and "Edit with Ilovepdf". Can anyone help me out on how to achieve this functionality?
Custom actions in iOS ShareSheet - screenshot
All the resources I've got on the internet show only the implementation of custom actions in my app's share sheet, but not in another app's.
All the articles I referred to regarding integrating custom actions, talk about integrating them within the share sheet of the app you're building and not how to show those actions in other apps' share sheet as well
I guess what you are looking for is an Action extension.
See this Apple guide for details: https://developer.apple.com/library/archive/documentation/General/Conceptual/ExtensibilityPG/Action.html#//apple_ref/doc/uid/TP40014214-CH13-SW1
