Check this webpage: http://systematicreviewtools.com/
You'll find a wide range of tools to carry out a systematic review and meta-analysis.
For the screening phase particularly, I've used abstrackr (http://abstrackr.cebm.brown.edu/account/login), revtools (https://revtools.net/), and screenatron (https://sr-accelerator.com/#/screenatron), all highly recommended!
I use DistillerSR. Not super user-friendly, but they do have a live help chat function where they help/explain with questions you may have. Once you get used to the program, it is fairly useful.