Tuner PRO is a versatile tuning app designed for iPhone users, developed by Pavel Radzivonau. It falls under the Multimedia category, specifically in Music & Radio subcategory. This app offers a wide range of tuning options for various instruments including electric guitar, acoustic guitar, bass guitar, violin, cello, and ukulele.

One of the standout features of Tuner PRO is its user-friendly interface, making it easy for beginners to tune their instruments accurately. With customizable tuning options like Standard, Drop D, Drop C#, Drop C, and Drop B, users can tailor their tuning preferences. Additionally, this app doubles as a chromatic tuner and tuning fork, providing comprehensive tuning capabilities for musicians of all levels.