NVR Mobile Viewer by EMSTONE is a free multimedia application that allows you to monitor live camera images from your NVR on your Android device. With this app, you can manage your NVR/DVR device list, control PTZ, and save snapshot images. You can view multiple cameras in 1x1, 2x2, 3x3, and even 10x10 modes. However, search and other features are not yet supported in this version, but they will be added in the next updates.

It is important to note that if you are experiencing issues with live images not being updated properly, you must upgrade your NVR software to the latest version since.

Overall, NVR Mobile Viewer is a great tool for those who need to monitor their NVR cameras on the go. The app is easy to use and provides reliable live camera monitoring.