These are a few Homey camera apps:
Blink
Dahua
Netatmo welcome
Ring
UniFi Video
Turn an android device to an ip camera with Android IP Webcam
or if you own for example a Synology NAS and have a camera on this list or any generic camera that has onvif protocol support. Then you could use Surveillance Station It is even possible to trigger on motion events from surveillance station. Take a look a this post.
