Use your Android phone's camera as a wireless webcam in PC or Mac. Install needed drivers and use your phone with Skype, MSN Messenger etc video applications. It supports resolutions up to 4K. (Max resolution depends on the phone).
Iriun Webcam vs iVCam opinions
IP Webcam turns your phone into a network camera with multiple viewing options. View your camera on any platform with VLC player or web browser. Stream video inside WiFi network without internet access.
Look amazing on video calls. Use your smartphone or tablet as a pro webcam and get powerful effects and adjustments for Zoom, Meet, and more.
EpocCam transforms your iOS devices into High Definition webcam for your PC or Mac, completely replacing USB-webcam or integrated camera. Works with all webcam apps on computer such as Skype, Streamlabs OBS, Google Chrome and QuickTime.
WO Mic can turn your phone to be a microphone for your computer. Millions of people have installed it and are using it daily for talking, recording, voice remote control and many other activities.Warning
12 security vendors flagged this software as malicious.https://www.virustotal.com/gui/file/961dad1b04a8ec7be5a17b2c1564a87088c5d86905ea022620e9576adf299cdd/detection
SmartCam - Smart Phone Web Camera - Turns a camera phone (S60, WinMo6.x, Android, Samsung Bada) with bluetooth or WiFi into a handy webcam ready to use with your PC.Discontinued
The project is no longer developed since 2013. Last versions of the apps can be still downloaded from SourceForge.
Transforms your Android device in a wireless IP camera. It works with both the Wi-Fi and the mobile data connection and can stream video from any cameras together with the audio.
Instantly turns your iPhone into an HD webcam for your Windows computer. To give a strikingly true-to-life and impressive view for your video recording, and video chats on Zoom, Microsoft Teams, Twitch, YouTube Live, Skype, Discord, etc.