Playback is intermittent.
I had a local installer provide me with two DVRs in different buildings and 8 cameras in total, and they included setting it all up on my iphone, ipads etc... First of all, it cost an insane amount of money, but as it worked well and playback was good etc... I didn't mind paying for good quality. Over the last year, however, things have gone downhill. Sometimes the playback works and sometimes it doesn't. It can be working from one DVR on my phone and not the other, or neither of them at all. It sometimes works from inside the house and sometimes not. If I fiddle about opening and closing the app and trying different routes into playback, then sometimes it will start working. However, this is not consistent, and I have to go upstairs and use the telly where the main DVR is to get any sort of robust playback. Considering the huge amount of money spent on this system and its installation, I am disappointed and would not recommend. If you want to fix it, like others, you need to give them every number and specification known to man, just to get some technical guru to fail to respond to your emails, and frankly you know its going to start happening again so whats the point. HV and Apple are clearly not compatible.