<p>The Hacker's Diet, published by John Walker, founder of Autodesk, Inc, and co-author of AutoCAD, as a handy Android app. You can track your weight and excercise and get a weighted moving average of your weight's change over time.</p><p>The app can be used completely offline, with local backups being created as well. You can also optionally synchronise your weight to the Hacker's Diet Online at https://www.fourmilab.ch/cgi-bin/HackDiet which has additional features like weight gain/loss goals, Trend calculations, graphs over long periods and more.</p>