Isotope Browser is a free Android app developed by the International Atomic Energy Agency that provides properties of over 4,000 nuclides and isomers. The app includes a Chart of Nuclides with zooming and tapping features, and a Periodic Table of Elements that allows for easy selection and navigation. Users can filter nuclides based on half-life, decay mode, radiation type, and energy.

The app presents summary data in a scrolling list, and each nuclide has its own details page with web links to data sources and further information. The filtered nuclides can also be visualized on the Chart of Nuclides. The data used comes from the most recent and reliable sources, and the app's embedded database ensures optimal search-and-retrieve performance without requiring a network connection. Isotope Browser is an invaluable resource for anyone in the field of nuclear science or related studies.