Betterment charges lower fees than Acorns if your balance is lower than $14,400, which makes it more suitable for low-net-worth investors.
Unlike Acorns, Betterment offers features like tax-loss harvesting at no extra cost, and the feature is available to all investors across the platform.
Betterment offers a wider range of portfolios and investment options than Acorns, and the Betterment Cash Reserve account pays 2.00% interest on your cash deposits.
On the other hand, Acorns lets you invest in Bitcoin-linked Exchange Traded Funds (ETFs), which allows you to invest in cryptocurrency, further diversifying your portfolio.
Acorns also offer cashback on 350+ retailers nationwide, a feature missing in Betterment.