Online or Print planner for organizing multiple kids?

I tried the free Homeschool Sked Track and liked it pretty well but found we needed more flexibility in the early years so I made my own paper planner. It has worked great!

Next year, all of my kids will be officially homeschooling in grades 1, 3 and 5. I want to do a lot of our lessons together but they will each have some things unique to their age.

What is your favorite planner for keeping organizing lessons?

I’m sure there is an existing discussion on this but I couldn’t find it.