I got a sleep study at the age of 24 because my then-girlfriend (now wife) said "I got used to the snoring, but that thing where you stop breathing really freaks me out". The what now? In hindsight, I'd had signs of sleep apnea since I was in my teens despite being a healthy weight.
I was diagnosed with 'mild to moderate' sleep apnea and told to not drink, and to exercise more. No CPAP needed. And they were right- if I do those things, I don't have many problems. But then again, I can't always do those things.
What really helped though, and I'm loathe to even say it, was taking high absorption magnesium. I hate it because there are very limited studies that say it should work, and it's mostly promoted by absolute quacks. And yet, when I take it, I sleep really well without snoring or having apnea issues and if I stop, I sleep terribly.
The problematic thing is kids spending endless hours just absorbing rather than playing or interacting or doing stuff. It culminates in kids (and adults) who cannot mentally handle being bored- they must have the screen to relieve the horrors of the idle mind.
If achieving these same goals is easier without an app for you and your kids, then by all means, do that. But an app on a screen is a very powerful tool to structure and organize things. My daughter is still a bit young for this one, but I can see how useful it will be when she's a couple years older.