Open Peeps - A hand-drawn illustration library.
Welltory - Manage your energy, not your time. Improve your focus & performance with small changes in your lifestyle. Quantified self dashboard for hardworkers.
Control Illustrations - 108 free flat illustrations with customizable characters
Cardiogram: HR Monitoring - Accurately measure and monitor your heart rate over the whole day.
Blush - Illustrations for everyone
Instant Heart Rate - The first, fastest, and most accurate mobile heart rate monitor.