Nomie lets you quickly and privately track your mood, and anything that might affect it (sex, drugs, work, etc). Nomie 4 is open source under the MIT license and can store data locally, or encrypted in the cloud w/ Blockstack
Fitness Lab is the first data-driven fitness planner which combine both workout log and food tracker.
Define your goal, choose a complete training program or create one by yourself. Exercise with the proper technique, log your results, track progress using various metrics. Track your nutrition intake to get the best out of your activities.
Mood Pixel is a minimalistic mood tracking and year-in-pixels app that is free to use.
Mood Pixel tries to help people to reflect more on their lives, making them realize about the good and the bad. Thus, trying to improve their situation on a daily basis.