IsotopeAtlas

Isotope Atlas is a focused offline workspace for exploring isotopes, estimating radioactive decay, and keeping simple sample notes. Browse a curated reference of common stable and radioactive isotopes, search by element or practical use, and review atomic number, mass number, neutron count, half-life, decay mode, applications, and concise safety context.

The built-in decay calculator turns half-life data into clear, useful estimates. Choose an isotope, enter an initial amount and elapsed time, then see the remaining amount, remaining percentage, and number of half-lives at a glance. Save useful scenarios to a local calculation history for quick comparison later.

Sample Logs help students, educators, and science enthusiasts organize non-sensitive study records. Add a custom name, associated isotope, amount, observation date, storage note, and comments, then edit or remove entries whenever needed. A practical safety guide explains time, distance, shielding, labeling, and response fundamentals through short checklists.

Isotope Atlas works entirely offline. It requires no account, contains no advertising, makes no network requests, and stores your sample logs and saved calculations only on your device. The app is designed for education and general estimation. It is not a radiation detector and does not replace calibrated instruments, institutional procedures, professional radiation-safety advice, or medical guidance.