Scientific Calculator 30 34, developed by Tools for Student, is a free Android app that offers a comprehensive set of calculators for students. The app includes both Pro Scientific Calculator 30 Plus and Free Scientific Calculator 34 Emulator. Both calculators have basic and advanced features that can handle complex calculations with ease.

The Pro Scientific Calculator 30 Plus can perform all the basic fraction calculations, including mixed fractions, and offers additional features such as factorial and random integer. The Free Scientific Calculator 34 Emulator has the ability to factor integers into primes and perform derivatives and integrals. Both calculators are also equipped with the same set of advanced features as the ES and EX Calc series, including the Advanced Calculator 991 ES Plus, which can solve quadratic and cubic equations, and the Scientific Calculator 115 ES Plus, which supports complex numbers.

Overall, Scientific Calculatoris a handy app for students who need a reliable and accurate calculator for their studies. The app is user-friendly and easy to navigate, making it accessible to students of all levels.