This shiny app is based on R and its used for the analysis of tweets. It also does the sentiment analysis of tweets.
You can also filter the tweets on the basis of location and as well as can set the number of tweets that you want to include for analysis.
This shiny app includes a Pie chart, Histogram, Word cloud and much more.
You can also analyse tweets based on the HashTag used and can analyse each user's tweets separtely.
You need to replace consumer key, consumer secret, access token and access secret with your own stuff. You can get it by creating a twitter developer account and a demo app in that.