RF Calculator, developed by AppDevGenie, is a free utility application available on the Android platform under the Education & Reference category. The application is designed to perform various calculations, conversions, and reference tables related to Radio Frequency (RF) engineering.

The application features a wide range of calculators, including wavelength, free space path loss, attenuators, link budget, resonance, VSWR, reflection coefficient, return loss, mismatch loss, percentage ERP, transmission line, EIRP/ERP, and Fresnel Zone. Additionally, RF Calculator includes converters for power, voltage, current, terminated, field strength, and distance. The reference section comprises frequency bands (ITU), amateur bands, amateur band plan - IARU region 1, amateur Q codes, phonetic alphabet (NATO), decibel suffixes, and SI unit prefixes.

Overall, RF Calculator is a comprehensive utility application for RF calculations and conversions, making it a useful tool for RF engineers, students, and enthusiasts. The user interface is simple and easy to navigate, providing a hassle-free experience. However, the application lacks advanced features like graph plotting, which could enhance its functionality.