This is probably the best part about this alarm, that there is no need for a desktop PC to reach any advanced features and that you can configure it from anywhere. From arming the alarm from work (if you forgot to arm it before leaving), to disarming remotely if needed. App is extremely user friendly and very intuitive, so this is probably the best part. Very well organized and all Ring devices can be controlled from within the same app.
This works well. The install is easy. I have one very major complaint. The blurb on Amazon does not explain that you have to pay for a cloud subscription to store and retrieve the short videos of motion events. The promotional material and install instructions are structured such that you do not catch this ¨gotcha" until the unit is installed and you use it for a day or 2. There is no provision to store these videos locally on your own computer. I am giving this just one star because they are not up front about the need for a paid subscription and the lack of a local event video storage option.

As far as Ring Alarm, I don’t have an answer for you, but I understand and appreciate the knowledge you’ve shared. I would also agree that if they haven’t advertised jamming detection, that’s probably because it doesn’t exist. A Twitter friend of mine, who works for Underwriters Laboratories (UL), also mentioned that the system is not UL certified. Again, probably not as important to you as this jamming issue, but something interesting to note.

From what I understand, it’s not so much a matter of just buying a device, but also programming it to the exact frequency that matches your alarm system. (Which makes an interesting case for not using a security sign, but that’s another debate.) That said, a really good signal jammer can cost upwards of $1,000, and as CNET pointed out, they would still have to smash a window or break down your door. The guy who wants money for his addiction isn’t going to spend the money and effort needed to pull off a jamming heist. Of course, if you are a public figure or might be the target of a more complex attack, I would suggest looking into a wired alarm system.
If you do have smart lights and want to control them with a contact sensor or motion detector, you will need to install separate ones in addition to Ring’s, which can make your front door look like it’s grown barnacles with all of the sensors installed. Another simple integration would be to set a smart thermostat to its away mode when the Alarm is set to away, and then switch it back to its home mode when the Alarm is disarmed, but that’s currently not possible either.
The Ring Alarm system has three different modes, which can be set via the keypad or through the iOS and Android apps. There’s the standard disarmed mode that turns off all of the monitoring; an away mode that watches all of the installed sensors for intrusions; and then a “Home” mode, which by default will monitor sensors installed on entryways, but ignores motion inside the house. I’ve used the latter mode as basically a night or sleep setting, since during the day my family moves in and out of the house a lot and would constantly trip the door sensors.
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System is very responsive and mobile alerts are sent in real time. If the alarm goes off, you will get a mobile alert from the app with information about the actual sensor tripped; this app alert will be followed a few seconds later by a phone call from a representative checking on your well being. They will ask you for your “safe word” and if you cannot give the correct one they will dispatch a police officer. I also noticed if you cancel quickly enough with the app then they will not call you; I once cancelled after a few seconds through the app and the phone call came in, but before it could be answered it was already disconnected - which was great, no need to explain myself.
I’m confident that if Ring were a closed system—hardwired to my home network, and not at the mercy of Wi-Fi and smartphone connections—signal reliability would be a non-issue. But we’re in the wild, wild west of cloud-connected smart-home devices. The Internet of Things (ugh—that word!) is riddled with weak links, and neither Ring nor its smart-home brethren can control the infrastructure’s frequent unpredictability.
Despite our internet running at 300mpbs or faster, our Ring struggles to pick up a solid signal from our router, which is no more than 15 feet from the RING. The several times I've contacted the Ring support team they've been very friendly. They even sent us a signal boosting Chime Pro for free to help with the signal problem. Unfortunately this only made the signal worse according to the support team.