Wasn’t this exact one, as I’m pretty sure they’re all fly by night companies and I can’t find the one I have, but it’s basically this: https://www.chewy.com/nityers-food-dispenser-lcd-screen/dp/5012590

Seems to be the same down to the battery backup. I’m sure you could get it cheaper through Amazon or Temu or some other company, I just try to avoid sharing amazon links.

Sorry I couldn’t find mine exactly, but based off the appearance and info I’m pretty sure it’s the same.

I don’t have an app for it, but I have a fully offline automatic feeder. For over a decade I didn’t and it was fine but then I had some nights where I ended up delayed on my return home and I felt bad because their bowl would be overturned even if I was only 30 minutes late. Now they have a predictable schedule regardless of if I make it home exactly on time or not and there’s an added bonus of having it for pet sitters so they never have to worry about getting the time wrong or forgetting. Mine plugs into the wall and has a battery backup so even if the power goes out it’s still going to work for quite some time.

I definitely wouldn’t do free feeding like in your second picture for my pets, but I’m sure some could pace themselves.