Rove Miles is a travel currency you earn without a credit card. Rove's own framing is "No new credit card. No switching banks": you keep paying with whatever card you already use, and Rove layers on top of it. Rove says its miles do not reduce what your card earns, because the two are paid for differently. Where a card issuer funds rewards from processing fees, Rove says it takes commission from airlines, hotels and merchants and passes part of it back as miles.
You earn by booking flights and hotels through Rove, by dining at restaurants in its network, and by shopping through its portal, its browser extension, in store, or by buying gift cards. Rove advertises up to 25x miles per dollar on shopping and on hotels, across more than 200,000 properties. A hotel stay Rove marks Loyalty Eligible is booked direct, so it still earns the hotel's own points and elite nights.
The miles leave through 21 airline and hotel programs. Every one is 1:1 except ALL Accor, which takes 1.5 Rove Miles for each ALL point. Rove does not publish a minimum or a transfer time for any individual partner, saying only that each may differ and that processing varies; it also says transfers are typically final. Miles do not expire while the account stays active.
Two things are worth knowing before relying on the table above. Rove's own pages disagree on how many merchants are covered, giving 13,000 stores in one place and tens or hundreds of thousands in others. And Rove publishes no bonus on any of its own pages, so the transfer bonuses recorded here are sourced to outlets rather than to Rove, and each row says so.