Should I start to build the watchOS app of BeeDone or work on marketing ?

Just to explain. I created BeeDone, it's a mobile and web app that I use everyday to boost my productivity with AI. I have 10 paid customers so I got like 200euros. I know I should focus on marketing to get more, to make the app viable but in another way I have my Apple Watch and I really want to be able to use BeeDone on WatchOS. So I don't know what to do...