When you open the Digit app, it will show you what it has recently saved for you since you last checked.
To see all of your funds in Digit, scroll down in the app to see a card for each goal or fund that you're saving towards. Each goal is separate, so in this example, the Rainy Day goal has $12.51 in it currently, and the Retirement goal has $41.78 in it currently for a total of $54.29 in Digit.
You can tap on a goal to see a more detailed breakdown of all of the transactions for that specific goal. Withdrawals will also be shown in this view as well.