OpenTune
OpenTune screenshots (3)
Description OpenTune
What if your guitar could tune itself with studio-grade precision, anywhere you go?
OpenTune transforms your Android device into a professional, polyphonic tuner that listens to your entire instrument at once. Unlike basic chromatic tuners that require you to pluck individual strings in isolation, this app analyzes the complex chord you're playing and identifies which strings are sharp or flat in real-time. It supports a vast array of instruments—from standard and drop-tuned guitars and basses to ukuleles, violins, and mandolins—with custom presets for each. The core interface is a highly responsive, animated wheel that provides immediate visual feedback, while a detailed strobe tuner mode offers micrometer-level accuracy for perfect intonation. It functions flawlessly in noisy environments, using advanced algorithms to isolate your instrument's pitch from background sound.
Why does this tuner feel so fundamentally different to use?
The experience is defined by its clarity and lack of friction. The visual design is purposefully minimalist, presenting only the essential information without distracting graphics or advertisements, allowing you to focus entirely on your instrument. Calibration is a one-time affair, letting you set a reference pitch from 410 Hz to 480 Hz to match any ensemble or recording. A highly accurate tone generator is built-in for tuning by ear, featuring pure sine waves for each note. Performance is exceptional even on older devices, with near-zero latency in pitch detection ensuring the tuning process feels instantaneous and connected to your playing.
- Polyphonic tuning for full chords
- Support for 20+ string instruments
- Pro-grade strobe tuner mode
- Clean, ad-free interface
Stop wrestling with unreliable tuners. Download OpenTune now and achieve perfect pitch in seconds—your playing deserves nothing less.
Heads up: you'll need wifi for the initial download and calibration tone library. The pro strobe tuner mode is a premium feature.