Fretio

Fretio helps guitar players build fretboard knowledge, ear training, and practice consistency with interactive visual feedback and real-time audio detection. Use your iPhone microphone to detect notes while you play, train with an interactive fretboard, work through structured Circle of Fifths learning flows, and keep your instrument in tune with the built-in chromatic tuner. Key features: - Real-time note detection for guitar practice - Interactive fretboard feedback - Learning modules inspired by Circle of Fifths theory - Built-in chromatic tuner - Learning and practice modes for note drills, chord practice, and guided exercises - Progress tracking for practice sessions and learning flows - Configurable practice settings for pace and difficulty Fretio is designed for beginners learning note positions and for experienced players refining theory, timing, and accuracy. Core audio processing happens on device, and the app does not require an account to access core features. Whether you want to practice note recognition, improve your fretboard awareness, work through structured learning exercises, or tune up quickly before playing, Fretio gives you focused tools in one iPhone app.