Use APKPure App
Get IP Camera old version APK for Android
Use IP with network.Other phone can watching screen for another phone's camera.
Other phone can watching screen for another phone's camera.
The app use the internet by IP. All devices must install this app.
Restriction :
When create must use Wi-Fi,and setup Forward by Guide.
Note:
When screen off will disconnect.
https://play.google.com/store/apps/details?id=com.game.ipwebcam