Those types of cams are pretty much dependent on the app with a phone and they want you to pay for a subscription.
You would be amazed at some of the silliness that goes along with no-name cameras.
My present CCTV system is not on all the time, only when we leave house for extended time. If I need to see video history I have to pull out the spare monitor and plug it in to the DVR.
I have asked the Amazon community about accessing the video. If there is no video history access then why use an SD?