1. Open the app.
2. Tap on the receipt to which you want to add a note.
3. Tap the More button. Then you will see all the available options - add a note, share, split and delete. Choose the add a note option.
4. Now, you can type a note. After you're ready, just tap the Done button.
5. Tap the Close button to go back to the main page of the app.