Anecdata: I have always wanted to do a full body exercise routine, gravitating toward body weight exercise. I _never_ wanted to deal with personal trainers and didn't really know where to start. I tried a few step-by-step guides over the years and always lost motivation. Always, sometimes relatively quickly. I'm healthy, skinny and do a lot of aerobic exercise and outdoor activities (soccer, frisbee, etc.), but I always wanted to have better all around fitness.

I used the pandemic as an excuse to start an at-home routine. Purchased a workout mat and an app subscription. The app tells me what to do, when to do it, and increases/decreases the difficulty of the next workout based on how long any given set of exercises took me. (As an aside, it's pretty cool. I took too long to do a particular exercise, like squats? They'll backpedal a little and build up my ability to do squats with a range of other exercises, then back to be able to do what I couldn't before). Anyways, long story short, I'm going on five months straight of workouts three times a week and have noticeable increase in general strength and flexibility.

Previously I hadn't ever considered an app to be in place of a human personal trainer. And really being able to workout at whatever time is convenient for the day (as long as I do 3 days a week) really makes it flexible.

Sorry, long post, but the article is a bit devoid of any information so thought I would throw my relevant experience in there.