1. Browse USSD codes in the iReff app
  2. Tap Add to Widget on your favorite USSD code.
  3. Whenever you need to check the required USSD code, just tap on the Balance Check Widget.
  4. A list of your favorite USSD codes will appear.
  5. Choose any to run the USSD code.
  6. Tap the Manage button to add or delete your favorite USSD(s).