Hi there. You know, almost all the professional security systems can be controlled through a phone app. It is absolutely not a new feature. Anyway, I agree with you. I also find Ajax one of the best brands now on the security market. They produce a lot of worthy devices. You can choose any of them now, or connect some later. They have an amazing free customer support service. This shows the level of the brand and its authority. As for any DIY system. Of course, there is no reason to spend any money on that. It could be quite well several years ago. But now now, at the age of technological progress.