The popularity rating of ews-api explained  Github Repository
Rubygem Now, the repository for ews-api over at jrun/ews-api has
got 12 watchers and 2 forks, resulting in a Github score of 0.04
Now, the gem ews-api has got 5126 total downloads Therefore, the
relative popularity percentage can be calculated for ews-api
0.04 watchers & forks * 100% = 0.04% 100.00 top score 5126 total
downloads * 100% = 0.01% 43937703 top score The average of those
two values results in the score:   So, assuming everyone is
using the most popular projects, roughly one out of 100 Rubyists
use ews-api