Molculator is a free Android app designed by Anton Titkov that offers a new and intuitive way to input chemical formulas and calculate their molecular weight. With its built-in online dictionary of compounds, you can easily look up widespread compounds with their credentials such as CAS, InChI, PubChem ID, and names.

The app's original design allows for fast input of chemical formulas with automated calculation of molecular weight based on IUPAC data for elements. It supports single-touch input of elements, creating formulas with indexes and charges, multileveled grouping, and "dot-joined" syntax support. The app also supports formulas for minerals and offers a molecular weight calculation report.

Overall, Molculator is a useful tool for students, educators, and professionals in the field of chemistry who need to quickly and accurately input and calculate chemical formulas. The app's intuitive design and built-in dictionary make it easy to use and accessible for anyone with an Android device.