Quick question.

Is this program free? And by free I mean free, as in no money required for any aspect of it?

absolutely free!

…and it always will be. The beauty of open-source!

Yup - as Richardwad says, it’s free. Free to download, free to use, free to examine the code, free to make your own changes and redistribute (with source, of course). No cost. Gratis.

Do not pay any ebayers money for this program!

If you are feeling benevolent, however… synfig.org/Donations

Yep, synfig is free as in beer!

It is also free as in speech! Yay FOSS!