When open source web apps compete with SaaS, it's interesting.
After learning about Baserow on HN, I decided that I needed to write about that trend in the open-source/startups world, to create an alternative of X (SaaS) that is self-hosted, but also that you can pay to have hosted for you, if you're not technically inclined.
Here is a list of high-quality products that I've seen so far using that approach:
|SaaS||Open, Self-Hosted Alternative|
What's cool with those alternatives is that even though they offer a free self-hosted version that is open-source, they still offer their very own service to help monetize their project.
It helps getting market adoption, since there's no lock-in because you can (in most cases I think) always export the data to your self-hosted version when you want to manage your own instance.