Comment by robenkleene

> For Sketch, it being Mac only feels very restrictive and not a good business choice for them.

Also replying to this re Sketch, especially it being a business choice for them, Sketch is a Mac app through-and-through. That entire application would never in a million years have existed were it not for being Mac only. Sketch leveraged the Mac specific APIs created by Apple in the 2000s (e.g., Core Image and Core Graphics), this is exactly why Sketch was able to innovate on the UI-side (whereas Figma pretty much took Sketch's UI innovations wholesale, as pointed out several times in this comments section), because they didn't need the technical depth that Figma had, which had to re-implement all the low-level graphics APIs themselves in order to be cross-platform (Figma is not exactly a web-only app, it runs on at least Mac native as well, I don't have a source for this but I've heard it a few times [and I don't mean the separate app download Figma makes available, which is just a web wrapper, but there's a real Mac-native internal-only version of Sketch that's used for development]).

This is why for example Sketch was able to launch a compelling product with, I think two full-time employees(?) when it initially launched, that was competitive with Adobe products. This purely a product of the Apple ecosystem and specifically the climate in the 2000s when Apple was still pushing desktop-first technologies like high-quality image and vector libraries. Note also that Sketch didn't take funding until 2019 (and only then because Figma forced their hand), whereas Figma were VC-funded from effectively day one (Field was a Thiel fellow in 2012, first funding round in 2013).

There's two patterns here that were happening during the 2000s, one is bootstrapped Mac-first applications were often quite successful. Two, applications were using the AppKit to quickly iterate on interesting UI innovations, the fuzzy finder (LaunchBar, https://en.wikipedia.org/wiki/LaunchBar), the entire native-app-with-an-API-backend (Watson, https://en.wikipedia.org/wiki/Karelia_Watson), the extension-based editor (TextMate, https://en.wikipedia.org/wiki/TextMate), are some other examples of this.