| General Features | PSG | ExpressionEngine | FlatPress |
|---|---|---|---|
| Version |
1.12.0
|
1.6
|
0.1010
|
| Release Date |
2006-08-23 (19 years ago)
|
2004-04-23 (22 years ago)
|
2009-01-24 (17 years ago)
|
| Last Update here |
2020-02-05 (6 years ago)
|
2020-02-05 (6 years ago)
|
2020-02-05 (6 years ago)
|
| Author |
The PSG Team
|
EllisLab, Inc.
|
NoWhereMan (Edoardo Vacchi) and FlatPress Team
|
| URL | |||
| Free and Open Source |
Yes
|
No
|
Yes
|
| License |
GPL
|
Proprietary
|
GPLv2
|
| License Cost/ Fee |
Free
|
From 0$ - 249.95$
|
Free
|
| Development status |
Mature
|
Mature
|
Beta
|
| Interface Languages |
0
|
0
|
0
|
| Multi-User Support |
Yes
|
Yes
|
Unknown
|
| Multi-Site Deployment |
Yes
|
Yes
|
No
|
| System Requirements | PSG | ExpressionEngine | FlatPress |
| Programming Language |
PHP
|
PHP
|
PHP4, compatible with 5
|
| Operating System |
Any
|
Linux, Windows, OS X, BSD, Solaris
|
Platform Independent
|
| Webserver |
Any
|
IIS, Apache
|
Apache, works on IIS
|
| Root Access |
No
|
No
|
No
|
| Other Requirements |
None
|
PHP must have XML support
|
|
| Datastorage | PSG | ExpressionEngine | FlatPress |
| Text Files |
Yes
|
No
|
Yes
|
| MySQL |
No
|
Yes
|
No
|
| PostgreSQL |
No
|
No
|
No
|
| Oracle |
No
|
No
|
No
|
| SQLite |
No
|
No
|
No
|
| BerkeleyDB |
No
|
No
|
No
|
| MS SQL Server |
No
|
No
|
No
|
| Other |
No
|
||
| Anti-Spam | PSG | ExpressionEngine | FlatPress |
| Akismet Support |
Plugin
|
Plugin
|
Plugin
|
| Word Blacklist |
No
|
Yes
|
Plugin
|
| IP Ban List |
Yes
|
Yes
|
Unknown
|
| CAPTCHA |
Plugin
|
Yes
|
Plugin
|
| Other Anti-Spam mechanisms |
Moderation, link condom
|
Email Banning, secure forms, randomized Trackbacks, Bad Behavior extension
|
|
| User Access Features | PSG | ExpressionEngine | FlatPress |
| ACL |
No
|
Yes
|
No
|
| Audit Log |
No
|
Yes
|
No
|
| LDAP Authentication |
Plugin
|
No
|
Unknown
|
| Other Authentication |
You can write your own auth plugin
|
No
|
|
| Support | PSG | ExpressionEngine | FlatPress |
| Commercial Support |
No
|
Yes
|
No
|
| Online Help |
http://expressionengine.com/support/
|
http://www.flatpress.org/forums/
|
|
| Issue Tracker |
http://savannah.nongnu.org/bugs/?group=psg
|
http://expressionengine.com/bug_tracker/
|
http://www.flatpress.org/forums/
|
| Books |
None
|
None
|
None
|
| Support Forum | |||
| Mailing List | |||
| IRC-Channel | |||
| Blogging Features | PSG | ExpressionEngine | FlatPress |
| Categorization |
None
|
Multiple
|
Multiple
|
| Tags |
Yes
|
Yes
|
Plugin
|
| Archiving |
Yes
|
Yes
|
Yes
|
| Trackback |
Send+Receive
|
Send+Receive
|
|
| Pingback |
No
|
No
|
|
| Ping Service Support |
Yes
|
Yes
|
Unknown
|
| Link- / Blogroll |
No
|
Yes
|
Yes
|
| Protected Posts |
No
|
Yes
|
Unknown
|
| Blog by Email |
No
|
Yes
|
Unknown
|
| Blog by SMS/MMS |
No
|
Yes
|
Unknown
|
| Blog API |
Blogger, MovableType/Metaweblog
|
WordPress (plugin)
|
|
| Post Editing | PSG | ExpressionEngine | FlatPress |
| Multi-paged posts |
No
|
Yes
|
No
|
| Spell Checker |
Optional
|
Yes
|
No
|
| WYSIWYG Editor |
Optional
|
Plugin
|
Plugin
|
| Undo |
No
|
Yes
|
Unknown
|
| Syntax Highlighting |
No
|
Yes
|
Plugin
|
| File Upload |
Yes
|
Yes
|
Yes
|
| Asset Management |
Yes
|
Yes
|
Unknown
|
| Emoticon Images |
Plugin
|
Yes
|
Plugin
|
| Comment Features | PSG | ExpressionEngine | FlatPress |
| Comment Layout |
Flat
|
Flat
|
Flat
|
| Feeds for Comments |
Yes
|
Optional
|
Yes
|
| E-Mail on Followup |
Yes
|
Yes
|
Yes
|
| Gravatars |
Yes
|
Plugin
|
Patch
|
| Open-ID Support |
None
|
None
|
|
| Extended Features | PSG | ExpressionEngine | FlatPress |
| Plugin System |
Yes
|
Yes
|
Yes
|
| Photo Gallery |
No
|
Yes
|
Plugin
|
| Polls / Surveys |
No
|
Plugin
|
Unknown
|
| Search Engine |
No
|
Yes
|
Yes
|
| Custom Pages |
No
|
Yes
|
Yes
|
| Google Sitemap |
No
|
Optional
|
Patch
|
| Workflow | PSG | ExpressionEngine | FlatPress |
| Content Approval |
No
|
Yes
|
Yes
|
| Versioning |
No
|
Yes
|
No
|
| Article Publishing |
simple
|
scheduled
|
simple
|
| Comment Moderation Queue |
Yes
|
Yes
|
No
|
| Interoperability | PSG | ExpressionEngine | FlatPress |
| Content Import |
MovableType, pMachine, RSS, CSV
|
SimplePHPBlog (native, almost), CuteNews, WordPress
|
|
| Content Export |
MySQL
|
SimplePHPBlog (native, almost), WordPress
|
|
| Unicode Support |
Yes
|
Yes
|
Yes
|
| WebDAV Support |
No
|
No
|
Unknown
|
| HTML Output |
XHTML 1.1
|
XHTML 1.0 Transitional
|
XHTML 1.0 Strict
|
| Friendly URLs |
Yes
|
Yes
|
Yes
|
| Administration | PSG | ExpressionEngine | FlatPress |
| E-Mail Notifications |
Yes
|
Yes
|
Yes
|
| Themes / Skins |
Yes
|
Yes
|
Yes
|
| Trash |
No
|
No
|
No
|
| Web Statistics |
No
|
Yes
|
Plugin
|
| Web-based Style / Template Management |
No
|
Yes
|
No
|
| Comment Administration |
Yes
|
Yes
|
Yes
|
| Syndication | PSG | ExpressionEngine | FlatPress |
| RSS 0.9x |
No
|
Yes
|
No
|
| RSS 1.0 |
No
|
Yes
|
No
|
| RSS 2.0 |
Yes
|
Yes
|
Yes
|
| ATOM 0.3 |
No
|
Yes
|
No
|
| ATOM 1.0 |
No
|
Yes
|
Yes
|
| Podcasting/Videocasting | PSG | ExpressionEngine | FlatPress |
| Podcast Feeds |
Yes
|
Yes
|
Plugin
|
| ID3-Tag Editor |
No
|
No
|
Unknown
|
| YouTube Support |
No
|
Yes
|
Yes
|
| Media Converter |
No
|
No
|
Unknown
|
| Phone2Podcast Support |
No
|
Yes
|
Unknown
|
| remove PSG | remove ExpressionEngine | remove FlatPress |