Professional standalone camera products now have a Doorbell offering and even cloud based storage!
The Home app is a platform for users of ICRealtime camera hardware. It enables users to access their IC Home series ICR products (Dinger, etc), deploy and configure the hardware, as well as receive push notifications when someone rings their Dinger series doorbell.
The app also supports cloud recording for supported hardware. If you need to extend the storage duration of your device, consider using the cloud for your surveillance footage!