Possible Duplicate:
Can you help me with my software licensing question?
Do I have to license Sphinx for a commercial website? I don't need to modify the code... just use it with MySQL.
Possible Duplicate:
Can you help me with my software licensing question?
Do I have to license Sphinx for a commercial website? I don't need to modify the code... just use it with MySQL.
No.
From: http://www.sphinxsearch.com/licensing.html
An important instance when a commercial license is not required generally occurs when one uses Sphinx for a Web site or a hosted service. For example, even if one provides a paid search services to their end users, a commercial license would not be required