What's the best Android app for setting up a DIY baby monitor using old phones or tablets?

BabyCam is a practical Android application that transforms spare smartphones or tablets into a functional baby monitoring system. It's ideal for parents looking to save money by using existing devices instead of purchasing dedicated hardware. The app streams high-quality audio with minimal latency, ensuring that sounds like crying are heard clearly and promptly. Video transmission is dependable, with users reporting good image clarity, but reviews indicate a delay of approximately 2.5 seconds in movement detection, which is common in wireless setups. Setup is straightforward, involving simple configuration to designate one device as the camera and another as the viewer. A notable feature is the browser-based access, allowing iOS users or computers to view the feed by saving a web address, compensating for the lack of a native iOS app. However, on Android, the absence of picture-in-picture mode means the screen stays active, potentially draining battery life. For scenarios like monitoring from another room or while briefly away from home, BabyCam offers a cost-effective solution with reliable performance, though the video delay might require parents to rely more on audio cues for immediate responses.