I've been tempted to give this a try myself. I recently had to buy a new dishwasher because the previous one's pump died. Bought what I thought was a decent enough replacement, but it wasn't until I installed it that I realised half the functions on it can only be done via an app, the main annoyance being setting a scheduled start time. And it's not even a first party app from Beko - it's some god awful dog **** made by a contractor for their parent company. It's slow as hell, half the time it doesn't save settings, and to make it worse you actually have to press a 'remote control' button on the dishwasher for the app to talk to it, so what's the ******* point!?
I'd build my own bloody app to control it without half of that bs.