: ~$5.00+ for one year of upgrades and permission to create commercial fonts.
Reviewers have mixed feelings about the learning curve and support:
: Free for creating fonts under the SIL Open Font license.
For a safe experience, you should download the latest stable release directly from the Birdfont developer's page. Birdfont – A free font editor for TTF, OTF and SVG fonts
: While the interface can feel "clumsy" initially, it offers unique tools like tracing background images to create new font shapes.