tonestro is an iPhone app developed by fun.music IT GmbH. It falls under the category of Education & Reference and is free to download. This app is perfect for those looking to learn brass and woodwind instruments such as the saxophone, trumpet, flute, and clarinet.

tonestro offers a comprehensive learning experience with short lessons and exercises that are tailored by music experts. These lessons cover music theory, fingering charts, exercises, and sheet music, providing users with a well-rounded education. The app also offers a gamified learning path, allowing users to collect points and compete with other musicians.

One of the standout features of tonestro is its extensive sheet music library, which includes hundreds of songs. Users can learn and practice their instrument by playing along with studio-quality background music. The app also provides live feedback on pitch and rhythm, helping users improve their skills in real-time.

Whether you're a beginner or an advanced musician, tonestro has something to offer. With its wide range of supported instruments and comprehensive lessons, this app is a valuable tool for anyone looking to learn or improve their skills on brass and woodwind instruments.