Hspell - is a Hebrew speller software made by Nadav Har'El and Dan Kenigsberg.
For more information about Hspell please go here.
Hspell is a well known software which runs with many open source software.
To name few of them: Firefox, OpenOffice and more...
A little details about Hspell licensing model
Hspell is an open source software licensed under the GPL (Gnu Public License) license.
While it is free to use Hspell under the terms of the GPL license, a different commercial license is available for using Hspell under "closed source" environments. (e.g most Windows applications).
Grigale is the sole distributor of HSpell software.
If you wish to buy Hspell for commercial use - please contact email@example.com.