Ethena launches USDe payments app with 6% rewards

This move signals a push to shift USDe from a yield-bearing collateral asset into a transactional medium, directly challenging traditional stablecoin payment rails and bank savings products. The 6% rewards are the key differentiator, as they blur the line between spending and saving, which could accelerate stablecoin adoption for real-world use. The critical watchpoint is whether self-custody and reward mechanics can sustain mainstream usability without friction, and how incumbents or regulators respond to this hybrid payments-plus-yield model.