RastaTune

RastaTune helps guitar players tune standard six-string guitars with clear visual feedback.

Open the app, allow microphone access, and play a string. RastaTune listens for pitch, locks onto the closest standard guitar string, and shows whether the note is flat, sharp, or centered.

Features:

• Automatic detection for Low E, A, D, G, B, and High E
• Real-time frequency and cents readout
• Large color tuning meter with tune up and tune down guidance
• Manual string selection
• Sound effects and animated visual feedback
• On-device audio processing; audio is not recorded

RastaTune is designed for quick practice sessions, string changes, and checking tuning before playing.