I just added a personal note to the database in a strange way. Nothing important
Modified login.php to return the SessionToken on successful User/Pass Combination and false for anything else. Also includes appropriate http status codes, and uses _POST[] instead of _GET[]
The following functions are now available on the webserver side

They are using $_POST to receive data

Using base url caredb.herokuapp.com

addUser.php?UName=username&Pass=pass&FName=first&LName=last

logIn.php?UName=username&Pass=pass

addCareGiver.php?SessionToken=receiverToken&PermissionToken=secretWord

addCareReceiver.php?SessionToken=giverToken&PermissionToken=secretWord

The next planned addition is addReminderSchedule.php

These should work, but let me know right away if your $_POSTS are failing