Please follow these instructions to switch from T1Pal Loop, T1Pal Loop Plus or T1Pal Loop 3 to T1Pal Loop Pro. 


Carbohydrates On Board will NOT be transferred to the new app, so it is best to do this with minimal COB. 


  • Accept the TestFlight Invitation for T1Pal Loop Prowhich was sent to your Apple ID email.
    • This is sent to the Adult Apple ID if the person using Loop is <13 years old.
      • Press "View in TestFlight."
      • Press "Install."
      • This can be removed from the Adult's phone after installation.
    • Install T1Pal  Loop Pro from TestFlight on the Loop user's iPhone.
      • Do not select "open"
  • Locate and start the new T1Pal Loop app from the home screen
    • Agree to all questions and grant all requested permissions.
  • Select "Use Nightscout with Loop"
    • Use the phone's camera app to scan the QR code on your T1Pal Uploader page, which will open the Mobile Upload Helper page in your phone's browser.
    • Use this to copy the Uploader URL and API Secret into the Loop app and log in.
  • Select "Import Settings from Nightscout"
    • Review and accept all settings.
    • This also imports custom presets ("overrides")
  • Select "Add CGM"
    • Enter Transmitter ID if G6
    • Wait for the first reading to confirm.
  • Select "Add Pump"
    • Set Reminder defaults and select insulin type. 
    • Do not start a new Pod
  • From your currently active T1Pal Loop app:
    • Select "Replace Pod"
    • Select "Disable Pod"
    • Cancel the pairing of the new pod
    • Remove the pod from the body
  • From the new T1Pal Loop Pro app:
    • Select the pump control panel from the upper right of the Loop app main display
    • Pair pod and proceed as usual.
    • Select Closed Loop operation
    • Select Dosing Strategy
    • Select Algorithm Experiments
    • Recreate Profiles if used
  • After 2-4 CGM readings, the Loop status will become green.
  • Verify the correct operation of T1Pal Loop Pro
  • When you are confident that T1Pal Loop Pro is operating correctly
    • Remove the previous T1Pal Loop app from your phone
    • Select previous T1Pal Loop app in TestFlight
      • Select "Stop Testing"
      • Confirm "Stop Testing"