Fathom Lite is self-hosted. Lots of people start off self-hosting but it’s typically useful for people with low traffic, or for people whose time is worth less than money, or even those who enjoy it. Because you have to maintain anything you self-host. We like to cater for both.

I am also buliding something similar: https://usertrack.net/

I think the main differences compared to Matomo is that it's simpler (less features), but provides for much cheaper some of their premium features (heatmaps, session recordings).

Let me know if you have any questions about userTrack or any suggestions! :)

Fathom is open source https://github.com/usefathom/fathom

That's the old project- they have decided not to open source the new one.

The open source project is barely maintained at this point- they update the readme and get the occasionally pull request, but it's not really being developed.

I unfortunately switched to Fathom back when they were telling people they were committed to open source, so now I'm looking to migrate off to something a bit more trustworthy.

You've been saying this since last year. If I can help you migrate off of Fathom Lite to something else, please let me know.

Yeah, I've been busy.

Apparently this repo contains "Fathom Lite", a (from a codebase perspective) unrelated predecessor of what is currently being sold as a SaaS.

And it seems that Fathom Lite misses one of the main selling points of Fathom - cookieless tracking.

Yes - Fathom Lite would need a good refactor to not use cookies.