Seismos is a free Android app developed by Panayiotis Mavrommatis. It is a simple seismogram generator that displays three components (x, y, z) simultaneously. The app is designed for those who are interested in seismology and want to monitor the seismic activity in their area.

Seismos generates seismograms that show the intensity of seismic waves in real-time. The app is easy to use and provides accurate data on the seismic activity in the area. However, the app lacks features such as save/export, which may be a drawback for some users. Overall, Seismos is a useful tool for anyone interested in monitoring seismic activity on their Android device.