We just use google calendar. Kids are little but we made them email addresses and invite them to their scheduled activities. I have their email access on my phone as does DH.
We also have a dry erase board calendar we update every week.

OP here- I would have bought the Skylight, but I'm very adverse to paying for yet another subscription.

Which electronic calendar or app is the best? I need an app to sync between dh and I and ideally I'd like it to display in our kitchen.

We have 3 kids in various sports and activities, they are too little for Iphones. DH and I also have a lot of activities. We're really struggling with our lack of calendar situation. For years I've used a really intricate paper calendar that was on our wall. The kids liked it, but dh didn't use it. He's the coach and scout leader and he wouldn't put any of those dates on the calendar or would forget.

I got a DAK board for Mother's Day, but dh has never got it working. It was supposed to sync with our current TV on the kitchen wall. I'm not tech savvy and couldn't figure out how to upload anything.

HELP! It's really stressing me out not having a solution and I spent way too much time on my paper calendar.