I am a single dad with two kids. For a long stretch my lower back ran my life. Physical therapy helped while I was in it. I read everything I could find. The McGill Big 3 was what made the biggest difference for me.
The exercises were never the hard part. Doing them properly every day was. So I built the timer, and I have kept refining it because I am the one living with it. Pro is the rest of what I still want and do not have yet.
I am not a company. If you email me, I am the one who answers.