Locating Round-ups in the Peak App:
Round-ups will build up in the "Accruing Round-ups" section of your Peak account until they cross $5. Once that crosses $5, the transfer is created and you will see all incoming Round-ups transfers in the "Incoming" section. After your Round-ups transfer processes, your "All Time Round-ups" increases and Accruing will go back to $0 as you start building more up.
Locating Round-ups in Peak on the Web:
From your home screen select "Round-ups" in the left hand menu.
Here you will find all time Round-ups as well as accruing round-ups.