iSeismometer is a fun and educational app developed by ObjectGraph LLC. This app allows you to turn your iPhone into a seismometer, measuring even the slightest movements.

Start iSeismometer, leave it on your desk, and tap somewhere nearby. You'll be amazed at how sensitive your iPhone is! This app is perfect for educational use and data collection.

iSeismometer has received recognition in various rankings, including being ranked #3 in Italy and #28 in Japan overall. In the Education category, it is ranked #1 in Japan and #11 in the US.

The app offers a range of features, including adjustable sampling rate, real-time drawing, timeline drawing, X-Y-Z illustrations, high-pass filter, and more. The spectrum graph displays the frequency in Hz, and an alarm can detect sudden motion.

Users have found creative uses for iSeismometer, such as demonstrating imbalanced washing machines or exploring the vibrations caused by various activities.

Overall, iSeismometer is a unique and entertaining app that allows users to explore the sensitivity of their iPhone and learn about the science of seismology.