Isso vs. Question2Answer
Take a look at this side-by-side comparison of Isso and Question2Answer.
At a Glance
Isso
About Isso
Isso is a lightweight commenting server written in Python and JavaScript, referred to as "Ich schrei sonst" in German.
Question2Answer
About Question2Answer
Question2Answer (Q2A) is a popular open-source Q&A platform for PHP/MySQL.