When comparing vectoricons vs Friconix, the Slant community recommends Friconix for most people. In the question“What are the best resources for public domain icons for apps?” Friconix is ranked 4th while vectoricons is ranked 6th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro WTFPL
Most of the icon sets have wtfp license which means you can do whatever you want with them.
Pro Professionally made icons
The icon sets on the site look really cool. Most of them are minimalist designs, which I prefer.
Pro Large variety of icons
Pro Icons are nice
Pro Uniform style
Pro Customize your JS file
You can customize a JS file with only the icons you selected. Awesome, optimized and very fast !
Pro Add new icons on request
The Friconix guys add new icons when you request them. They are very reactive.
Pro Icons are free
Pro Font icons are homogeneous
Pro Very fast to load
You can create your custom small icon file.
Pro Documentation is clear
Documentation about icons is clear and easy to understand.
Cons
Con Add link
When using icons in a paid application, a link to the Friconix website must be added.