Mobile apps can be very profitable, I'm not sure where you're getting your numbers/info from. Profitable mobile apps are typically B2C which is challenging. B2B

Mobile apps can be very profitable, I'm not sure where you're getting your numbers/info from. Profitable mobile apps are typically B2C which is challenging. B2B SaaS can be easier to sell, especially for one person and would typically be distributed as a web app. HN skews towards web developers so you'll typically get the feedback to go with a web app here. I think it probably makes sense to find an interesting problem and validate it and then decide on how to distribute your software that solves that problem, while also considering what stack you're most productive in.