Here is a great baby app that we used for Matthew. It really helped with getting him on a good schedule. While not set in stone and life requires flexibility, babies thrive on routine. It has built in reminders for feeding, diaper changes, milestones, ect. We used it to track all feedings and diaper changes (great info for sharing with the pediatrician). It was also nice to help spot possible causes of fussiness or symptoms of illness.
It is available for $5 on Android and ITunes. It is worth every penny. Check it out:
(No, this is not a paid advertisement 😛 )