Add features to a Cordova App

We have an HTML5 app built with Apache Cordova that generate ideas. The app needs following features to be added: 1. share the generated idea on twitter 2. share the generated idea on facebook 3. rate the app. For this particular feature, we will need it to be like this: [login to view URL] Please submit a portofolio on app you have done already. 1. Our budget is very limited so we will not accept any bid for more than 60USD. 2. We want to deal with real people so please don't submit any automatic bid that doesnt't even care about our requirements because it will not only disqualify you for this project but also for all our future projects. 3. For us to be sure you read the full descrption, start the message from your bid with "the square root of 81 is " and add the answer to the question. Any bid above the price or that doesn't contain the secret question and the answer will be ignored whatever good your portofolio or your talent is.