Turn on Round-ups using the Peak App:
To turn on Round-ups, simply tap the Peak logo in the right hand corner and choose ‘Try Round-ups.’
Follow the prompts to connect a Round-ups source, choose your Round-ups mode, and select which peaks you'd like Round-ups distributed to.
Turn on Round-ups using Peak on the Web:
To turn on Round-ups, simply go to your Round-ups settings by tapping the "Round-ups" button on the left side of your home screen.
From there select "Round-ups Mode" in the upper right hand corner.
You'll be given the option to turn on "Nearest dollar" or "$1 at a time." Select which you'd like to use and select "Confirm" on the next screen.