[eagleal]

> Sketch was the market leader in ui design tools. Before that, it was photoshop

No before the current iteration there was Fireworks, then the smaller web apps for wireframe prototyping (Balsamiq, etc).

Professional Designers used inDesign for bigger portals or complex and vast UIs. Or AI for the prototypes.

Photoshop lacked good vector tools and comprehensive styling of corpus.

[zdragnar]

You've got all the players named, but I do believe there was a time inbetween where Sketch was noteworthy, if not as a market leader, then as the most notable rising star.

[Lalabadie]

Yeah, for a good period (roughly 10 years ago) my serious choices were between Photoshop and Sketch, with less of a clear winner.

At my former app dev agency, the design team stayed on Sketch + inVision until Figma was already very well established.

[lastdong]

For those who are not as skilled in design, "AI" refers to Adobe Illustrator. :)

[wdb]

Never seen anyone design UIs in InDesign. Mostly they would go for Illustrator or Fireworks.