100% yes. And it shouldn't surprise you. It's a simple device designed with the pure purpose of digital-to-analogue conversion. Even it's Amp isn't a real amp, it's done simpler and more purely.
The cost of DAPs bloats tremendous because they are far, far, FAR more than DACs. They have screens, fully-fledged OS'es. They have WiFi, BT, apps, internet. Even the metal machining on the highest end DAPs is probably quite a bit more expensive than Mojo's metalwork. So much more goes into a top tier DAP, and so they cost more.
But when it comes to the circuitry dedicated to achieving sound quality, Mojo is more sophisticated by far. It can afford to be. It's not nearly as limited by space or cost, because that's ALL IT DOES.
And Chord's DACs are designed by the industry's lead authority, in my opinion. So yes, they sound better than any DAP.