This requires a dedicated computer (Raspberry Pi 4/5 or an old Intel NUC), a $25 Coral USB stick, and about 4 hours of YouTube tutorials. This is not an "app"; it is an infrastructure project.
Here are the best replacements for pairing with generic "A9" style cameras. HDWiFiCam Pro Go to product viewer dialog for this item. (Best Direct Replacement) This is the most common alternative for the same hardware. Jxlcam App Alternative
Only for nerds. If you enjoy coding YAML (a configuration language) more than watching TV, do this. This requires a dedicated computer (Raspberry Pi 4/5
You have three distinct paths to freedom. Choose based on your technical bravery. a $25 Coral USB stick