A host of digital start-ups have gotten a lot of attention in recent years for using technology to improve investing and democratize finance. Companies like Robinhood have targeted younger investors with commission-free stock trades. That's a compelling offer-but sometimes the offers are a little too compelling.

Last week Robinhood announced it was offering a new checking and savings account with 3% interest. That's way higher than anything offered by banks. But there's a catch. This week on The Readback, Alex Eule talks with reporter Ben Walsh about his recent story on Robinhood.

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