Acorn -

: Reviewers from Business Insider and CNBC highlight its clean, intuitive interface and automated rebalancing.

: Links to your cards and rounds up purchases to the nearest dollar, investing the difference once it hits a $5 threshold. : Reviewers from Business Insider and CNBC highlight

: Adds higher APY on savings and an IRA contribution match. or $12/month) rather than a percentage.

: Offers five diversified ETF portfolios ranging from Conservative to Aggressive, including ESG (sustainable) options. : Reviewers from Business Insider and CNBC highlight

: Acorns charges flat fees ($3, $6, or $12/month) rather than a percentage.