the author of this app says:
The Catch Eye allows for you to monitor DVRs.
It now supports Live mode. Playback mode will be added soon.
It is easy and convenient to use. You can watch up to 16 channels on Android phone.
The functions of Catch Eye:
1. Live View
2. 1/4 division
3. Channel switching
4. Server management
5. PTZ control
6. Digital zooming
The functions operated by Touch:
1. Single touch : switch channel, Pan/Tilt.
2. Multi touch : Digital-Zoom, PTZ Zoom-In/Out