Is Ispyconnect free? What is NVR software?

IP Camera Software can keep eye on your home, office, parking area, or anywhere you have an IP camera.
View video from multiple cameras simultaneously. What ip camera software is the best?
Shinobi - Simple CCTV and NVR Solution - Home
JS (Camera Recorder - Security Surveillance Software - Restreamer ... rapidvms( open source VMS/NVR Video Management System/ Network Video ... Network Video Recorder and Viewer for Android, iOS, Windows, macOS and Linux.

Download free IP Camera Software from here