If you are not getting notifications/reminders from your calendar(s), please check to see if the following settings are turned on. 

 ■iPhone 

     1. Enable notifications/reminders from iOS settings

          Tap phone "Settings"
         Tap "Notifications" and select TimeTree
          Ensure Timetree is set to enabled  

     2. Enable notifications/reminders from TimeTree app

         From any calendar within TimeTree, tap the three parallel horizontal lines in the upper left corner 
         Tap "App Settings" 
        Set "App notifications" to the "on" position.   

     3. Enable notifications/reminders from a specific calendar

         Tap the "More" tab at the bottom right of the screen when viewing selected calendar
         Tap the "Settings" gear icon in the upper right corner
         Tap the "User Settings" tab
         Set "Receive Notifications from the Calendar" to the "on" position  

 ■Android

     1. Enable notifications/reminders from OS settings.

          Navigate to Settings on your Android
         Tap "Apps and Notifications" 
         Tap "Notifications" 
         Locate TimeTree and ensure switch is in the "on" position  

     2. Enable notifications/reminders from TimeTree app

         From any calendar within TimeTree, tap the three parallel horizontal lines in the upper left corner
        Tap "App settings" 
        Tap "App Notifications" and ensure that switch is in "on" position  

      3. Enable notifications/reminders from a specific calendar

          Select chosen calendar to enable/disable reminders from 
         Tap the "More" tab in the bottom right of the screen
         Tap the "Settings" icon in the upper right hand corner
         Tap the "User Settings" Tab
         Ensure "Receive notifications from the Calendar" is switched on  

Should the above suggestions not solve the problem, please follow the steps below.

     1. Reinstall the TimeTree app and relogin

     2. Deactivate batter saver on OS settings
          If you are using system tools like Battery Saver, please deactivate these tools temporarily. 
         Navigate to your system settings and disable any battery saving option from your Battery and Performance settings.

     3. Enable notifications/reminders from OS sound and notification screen 
          Android devices require a sound to be selected for push notifications. 
          To verify that sound has been selected for push notifications: 
                -Navigate to settings on your Android
                -Tap "Sound and Notification" 
                -Confirm that you have a sound selected for notifications.