| BlaB! | Lite | Standard | Enterprise |
| AJAX based [no flickering] | Yes | Yes | Yes |
| High performance | Yes | Yes | Yes |
| Extremely low bandwidth | Yes | Yes | Yes |
| UTF-8 multilanguage support | Yes | Yes | Yes |
| MySQL, SQLite, Postgre support | Yes | Yes | Yes |
| Sound alert on new messages | Yes | Yes | Yes |
| Custom timezone settings | Yes | Yes | Yes |
| Bad words removal | Yes | Yes | Yes |
| 'http' links, text formatting | Yes | Yes | Yes |
| Best viewed with any browser | Yes | Yes | Yes |
| XHTML 1.0 STRICT/CSS2 | Yes | Yes | Yes |
| PHP4 / PHP5 compatible | Yes | Yes | Yes |
| Emoticons | Yes | Yes | Yes |
| - |
| Built-in registration system | No | Yes | Yes |
| User banning, IP banning | No | Yes | Yes |
| Turing number protection | No | Yes | Yes |
| Private one-to-one chat | No | Yes | Yes |
| Whispering in public rooms | No | Yes | Yes |
| Status: Online, Away, Invisible | No | Yes | Yes |
| Integration [phpBB, IPB, vBulletin, Joomla etc] | No | Yes | Yes |
| Admin Control Panel | No | Yes | Yes |
| Chat log in .txt files | No | Yes | Yes |
| Skins | 3 | 20 | 20 |
| Sound notifications to choose from | 10 | 60 | 60 |
| Free install | No | On request | On request |
| Avatars | No | Yes | Yes |
| Photos [uploads] | No | Yes | Yes |
| Rooms | 1 | Unlimited | Unlimited |
| Minor upgrades [4.0->4.9] | - | Free | Free |
| - |
| Major upgrades [4.x->5.x] | - | Discount | Free |
| Simultaneous connections | 10 | 50 | Unlimited |
| Password protected rooms | No | No | Yes |
| Topics | No | No | Yes |
| Ignore users | No | No | Yes |
| Country recognition by IP | No | No | Yes |
| File sharing [upload and post files] | No | No | Yes |
| Image sharing [upload and post images in chat] | No | No | Yes |
| Post and watch YouTube and MetaCafe videos | No | No | Yes |
| - |
| Price | FREE | EURO 35.00 | EURO 75.00 |
