Yes, The community version allows you to use Artica Proxy for unlimited users and unlimited time with Web-Filtering feature enabled.
Only these Enterprise features cannot be used:
The Artica Web-filtering database that stores more than 30.000.000 categorized sites cannot be used.
The community version allows you to use the Toulouse University database that stores 3.000.000 categorized databases.
With the Enterprise edition, you can create and manage your own categories. In community edition, this feature is disabled.
Web notification pages design.
With Enterprise edition, you can personalize the web page that display the deny access to the user. In community edition, this feature is disabled.
Extended Anti-virus database.
In Community edition you can enable Web Antivirus with “standard” antivirus patterns. The Enterprise Edition allows you to use extended patterns that increase the malware detection rate.