Yes. you can't just leave it and go somewhere. Constant monitoring is required

The idea is a children to install it on their parents devices and do nothing more. No smart watch, no need to the parents to frequently click anywhere. Just keep their device with them. I did it that way on purpose. To be as less intrusive as possible. The app stays there and run 24/7 and detect locations, moment of activeness and rest, sleep, and creates behavior patterns. If any of the pattern gets violated, it send a notification. I give an example: my father do a daily walk between 8AM and 10AM. If he misses that one I will receive a notification. If my mother fails on the street and she does not move for some time, I will receive a notification with the exact coordinates.

That simple ;)

:) It will be really stupid from my side to just let it go, without being sure that it will work. I am a professional after all, with almost 20 years of experience. There are 2000+ tests, 50K+ lines of testing code. I tested myself, and a lot of other people tested, with different devices. Covering all cases that we can think of. This is serious project, that I really hope that it will help a lot of people, and I really invested a lot of time and effort to make it stable. I intentionally delayed the push to production with a few weeks, so that I am 99.9% sure that I covered everything.

Of course, we are human after all, and I will highly appreciate every effort and support from others, so that we can make the product do better. :)

I doubt. Experience dev can't make 400+ files and write 2000 tests in a weekend. At least, I was never that fast and productive ;)

With my experience, developing android apps in Java, 10-15 years ago, such project would need at least 2 developers, for 5-6 months of development and testing.