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As promised, here is our app: https://play.google.com/store/apps/details?id=com.pineapple.jd.gianttimer We believe that it will help you to surf less and use your phone less and thus improve your concentration skills :) Check it out and if you have any suggestion about what should be added or any bugs that should be fixed,please do tell us and we will do our best to do it. Go Focus Yourself!