MeetMe is very user friendly app that help people in creating meetings with their contacts on their iOS phones. Set reminders for the meetings and get notifications for the reminders. Send messages and emails to the person you are going to meet and follow ups 

Use this app for :
1.Schedule and manage any formal meetings in your workplace with your peer or customer.
2.Set meet up slot with good friends or buddies on the go
3.Manage any kind of appointments be it formal or informal