In my little experience, many big companies are heavily invested in Appium, which was the only viable solution x years ago, and keep clinging on to that.

Also Maestro may not be flexible/hackable enough for some of the things they do with Appium. But in the long term I think everyone would benefit if Maestro became the go-to UI testing tool, the way Docker became the go-to tool for containerization.

> The quality of most mobile apps sucks so not sure why mobile testing is not mainstream?

I think it's actually: mobile testing is not mainstream, so most mobile apps suck, haha.

btw, I think that most mobile apps actually make no sense at all (many are just stupid CRUDs), and should be web apps. But that'd be a whole different rant :)