Linky (by developer Pragmatic Code) just transitioned from "remind me why I need this again?" to "best way to share links to Twitter" with a recent 5.0 update. Linky, for the unfamiliar, is an app that works as a share extension in the iOS share sheet, which had been up to now, just a slightly better way to compose and share links from apps like Safari and Instapaper to Twitter (and Facebook, but really—why?). The problem? Linky's slight "betteryness" was more or less neutered by its inability to also share images, it just couldn't be done, and as I've learned from one or two "guys claiming to be social networking experts on Medium," your rando tweets of man o' war jellyfish (Physalia physalis) washing up on the beaches of New Jersey just aren't as engaging without pictures of said jellyfish actually attached to them.
Enter Linky 5.0. It's magic. Have an article you'd like to share? Hit the share button, and choose Linky. Linky's compose window fills in the article's title and link, just like you'd expect, but now it also grabs any relevant image from the article, attaching it to your tweet automatically (or Facebook post, but we've been over this haven't we?). Copied an image to the clipboard? Linky offers that image as an option. Selected text in the article? Linky can add that to your composition or offer it as a textshot—a popular form of "engagement" well known to annoy followers.
Linky the app functions largely as a web browser that conveniently (one supposes?) loads clipboard URLs, as well as a place to adjust the extension's message template and other settings. Once properly setup, you won't really need to come back here, all of Linky's awesome is in the extension, the app can just be wrapped in a blanket and buried in your productivity folder.
So Linky—is it a must-have, get it now, absolute necessity? Quite possibly-maybe-yes, but only for those who are clearly too good for the native Twitter share extension and blended whiskeys, which is probably like half of you plus me. For us, Linky is the only way to share.