diff --git a/Platforms%2FiOS.md b/Platforms%2FiOS.md
index 4642fa2..01257cc 100644
--- a/Platforms%2FiOS.md
+++ b/Platforms%2FiOS.md
@@ -6,10 +6,16 @@ Description of iOS
 ### App States
 
 * Foreground
+** User is actively using the app.
 * Resigned Active
+** Something is stopping the user from interacting with the app ie notification bar, settings back, etc.
+** Essentially the app is not in focus.
 * Background
+** User has swiped up on the app switcher.
 * Suspended
+** System has stopped the app from running.
 * Terminated
+** Something has crashed, or 
 
 ### How to Suspend an App Reliably