Systematic Review management systems -
https://www.covidence.org/pricing/ (Covidence is not free)
Rayyan is a 100% FREE web application to help systematic review authors perform their job in a quick, easy and enjoyable fashion.
Epistemonikos is a collaborative, multilingual database of health evidence. It is the largest source of systematic reviews relevant for health-decision making, and a large source of other types of scientific evidence.
This product (PICO Portal) is free for single project per user with unlimited citations, reviewers, and collaborators. For students or Faculty working on systematic reviews.
Article Metrics - Find online mentions and shares for an article - Free
Comprehensive Meta-Analysis Software - Comprehensive meta-analysis (CMA) is essential software for the statistical procedure of combining data from multiple studies.. Complex analyses can be conducted easily using this intuitive software.