One Finance has a 1% savings account, and a 3% high-yield account that you need to jump through some hoops to fund (you can't put money into it directly, you can only skim 10% of any paycheque that you pay into your overall account)
There's a meaningful difference as you can't keep funds you're waiting for an opportunity to buy with in a savings account (unless you want significant delays, thanks US banking system)