If it's a DJI product, probably can't use it without the correct specific app from DJI. Last year I borrowed a DJI Osmo gimbal, and that could NOT be used without the specific supporting DJI app been installed and running.
That's the problem with some of these tech products, their proprietary supporting apps may go away for whatever reasons, and the drone, gimbal, smart-watch, etc, becomes completely useless, and is only good for recycling.