What are the best internet based monitoring systems for cameras for a parent who lives alone?

I have used the Blink camera system in my home for the last couple of years. I purchased them on QVC(and they're not very expensive) to keep an eye on my husband who has been bedridden in my living room for the last 21 months. I had been getting up over night to check on him, but now with the cameras, I just pull up my living room on my phone, and can see how's he doing without getting out of bed. They've worked great. Now I have the older models that do have sound coming from whatever room you have them in, but they now make them with 2 way sound, meaning that you can not only check on your mom in her house. but you can also talk to her and hear her when she responds.
I'm not very tech savvy either, but the Blink System is easy for me to use. Good Luck.