Airyware Tuner 4‏+

Powered by the 64-bit NeatTimbre™ DSP engine, this app can help you tune all of your string, brass, woodwind, and some percussion instruments. It is fast and accurate. Try it for yourself!

―― Airyware Tuner feature list: ――
• 9 octave tuning range: 15 – 8000 Hz
• up to 0.1 cent accuracy
• true strobe tuning mode
• linear needle meter
• ambient noise reduction
• A4 calibration: 300 – 600 Hz
• calibration to live sound
• waveform inspector (oscilloscope)
• high-contrast display
• sharp/flat/3b2# notations
• scale transposition: ± 12 semitones
• tone generator, pitch pipe: C2 – B4
• internal/external microphone support
• 400+ instruments, 900+ alt. tunings
• customizable temperaments
• customizable sweeteners
• customizable stretched tunings
• custom Railsback curve definition
• string inharmonicity awareness
• tempered note audition: C0 – B7
• favorite list of tunings
• feature request gateway

Please note, this app is not free, but you can try it for free before purchasing. After the trial period ends, you have the option to purchase a full version license. Alternatively, you can continue using the trial version as long as you like, but you will encounter a pop-up reminder twice every minute. There will be no other limitations, however.

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Most user reviews suggest that Airyware Tuner is the best guitar tuner. However, this app is not exclusively for tuning guitars. It can assist in tuning over 400 orchestral instruments, including the piano, violin, flute, bagpipe, trumpet, clarinet, saxophone, cello, mandolin, veena, church organ, harmonica, recorder, guitar, ukulele, bass, banjo, and more. It performs equally well on stage, at home, or on the street. Bass guitar players and contrabassists particularly love it. Piano tuners and luthiers use it professionally. With its instant reaction, scientific precision, waveform inspector, denoiser, and true strobe view, this tuner is the choice of musicians who demand only the best sound.