[E. Pluribus Unum]

For example, at its most basic level, quicken is my check writing software. I cannot find another software that will do that.

GnuCash, open source and free, can print checks just fine.

https://money.stackexchange.com/questions/152756/custom-check-printing

[Captain Jack Aubrey]

What does it do everything else that Quicken does, including tracking my investments and my charge cards and my properties and my stocks?