Is Unity 100% free or I should stay away from it if possible?

I was just wondering if unity is 100%?

I'm pretty sure unity is 100% free. I think though there are privacy related issues around the services it integrates with. The back end software is also proprietary on the other end (Canonical's servers). I'm not sure if Unity is separate from the pieces which connect to this. Generally though that shouldn't be an ethical problem although there are problems with software as a service/software which runs within the web browser and is proprietary.

Unity is free software and the only thing that irked others in the past was the requirement of potentially non-free drivers to run the standard version. There is Unity 2d, which was a part of the 12.04 (and Trisquel 6) codebase that didn't require it, but in 12.10 and above, they tried something called llvmpipe instead and phased out Unity 2d. I actually kinda like Unity 2d and running it right now.

As for the "unity-lens-shopping" package in 12.10 and above, it can be removed with apt easily and removed from the repositories entirely in Trisquel 6.5.

Unity is free software and the only thing that irked others in the past was
the requirement of potentially non-free drivers to run the standard version.
There is Unity 2d, which was a part of the 12.04 (and Trisquel 6) codebase
that didn't require it, but in 12.10 and above, they tried something called
llvmpipe instead and phased out Unity 2d. I actually kinda like Unity 2d and
running it right now.

As for the "unity-lens-shopping" package in 12.10 and above, it can be
removed with apt easily and removed from the repositories entirely in
Trisquel 6.5.

I'm pretty sure unity is 100% free. I think though there are privacy related
issues around the services it integrates with. The back end software is also
proprietary on the other end (Canonical's servers). I'm not sure if Unity is
separate from the pieces which connect to this. Generally though that
shouldn't be an ethical problem although there are problems with software as
a service/software which runs within the web browser and is proprietary.