When comparing Flarum vs AsmBB, the Slant community recommends Flarum for most people. In the question“What are the best web forum software packages?” Flarum is ranked 3rd while AsmBB is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pro Very fast loading time
Pro Based on (but not built with) Laravel
Flarum was originally based on Laravel and uses the Eloquent ORM. But it is not a traditional Laravel software.
Pro Mobile friendly
AsmBB provides specially optimized skin for mobile browsers, resulting for best UX on any device.
Pro Real-time chat
Since v1.5 AsmBB includes real-time chat in order to allow instant communication between users for themes not suitable for the "message board" format.
Pro Very high security level
AsmBB does not create any SQL queries in run time and from user provided data. This way, SQL injection is impossible by design.
AsmBB uses very few external libraries, this way preventing exploitation of 3rd party bugs and vulnerabilities.
Pro Multiple user selectable skins
The whole look & feel of AsmBB can be changed by using template and CSS files. Several sets of template files can be installed simultaneously. Every user of the forum can select the skin he likes.
Pro Highly customizable design
The whole design of the forum is defined in external template files that can be easily edited without need to change the code.
Pro Easy installation even on shared hosting
Pro No library dependencies - everything needed is in the package
Pro Really high performance and low requirements to the hosting
Con Slow development
Development moves at a glacial pace.
Con Very complicated installation process on shared hosts
This is not a MySQL+PHP application. it is impossible or very hard to install on shared hosts compared to vanilla or phpbb.