They probably have limited resources like many startups, and have to prioritize. Like how the stock trading app Robinhood was Android only at first, then they w

They probably have limited resources like many startups, and have to prioritize. Like how the stock trading app Robinhood was Android only at first, then they went to iOS. No web version yet as far as I know. Ideally I think if your building a product, you should have Web version, native iOS and Android versions as that would cover pretty much all of the market in the long run. But maybe it's best to focus on just one version, get it right and then make it for other platforms