FontPreview 4+

it does the job prevewing all fonts with customized text.
some UI bugs could be fixed such as Starring doesn’t instantly appear/disappear until you move selection away.
could allow more features such as tagging and grouping, etc.
but for $0.99, this is totally worth the money

Great Value! Installed easy, works great, simple but does what it’s supposed to do. Nice that I can search by font name and save favorites. Good work y’all.

This program does what it's supposed to do: it shows me text in a *lot* of fonts (all, by default).
You can enter you custom text (click on 'Text' at the top and type it in) and see it in all the fonts.

The multi-columns are fine, once you realize how to use them. Let's say you have 4 columns showing. Scroll column 1 to
have the first font you are thinking of using, then scroll column 2 to the second font, etc., letting you compare 4 fonts onscreen at the same time.
But ... it's not obvious, and a heck of a lot more limiting than the more obvious/useful option that should probably be added:
the ability to drag an example out of the "FontPreview" window and have it be a static window by itself. Then, the multi-column stuff could
be ditched, and I could have an arbitrary number of potential font choices showing.

One good aspect of the columns is that each column has it's own search/filter facility.

The program needs much more powerful filtering capabilities... I want to say:

[ ] Italic to include or exclude italics
[ ] Bold

and perhaps not as easy:

[ ] only san serif
[ ] only serif

And:

[ ] exclude fonts with missing characters

And:

Font source (choose one):
Any / Apple fonts only / User installed fonts only

I'd also prefer the ability to say something like "exclude more angular fonts" or "exclude more rounded fonts", which might require
the program to analyze "a-z" to deduce the degree of angularity for each font :)

Stan (40+ years of asking for enhancements) Sieler :)