It can take days to see those deposits in your checking account. Now Acorns has released an update of its app with features aimed at boosting how much customers save. You can make a withdrawal from the web app, Android app, or the iOS app. Any of the options, of course, would result in the same total savings, but customers reacted quite differently. Investments may take days to process because we’re only able to purchase shares of Exchange Traded Funds ETFs while the market is open. Select Recurring3. Acorns Support.