Rei Publicae is described as 'In the history of our species, access to information has never been easier. That is, for sure, an advantage we should cherish' and is an website in the Education & Reference category. There are six alternatives to Rei Publicae, not only websites but also apps for a variety of platforms, including Android, iPhone, Android Tablet and iPad. The best alternative is Wikipedia, which is both free and Open Source. Other great sites and apps similar to Rei Publicae are Kiwix (Free, Open Source), Encyclopædia Britannica (Freemium), Every Page Site (Free) and Encyclopedia.com (Free).