Airyware Tuner is a professional chromatic strobe tuner. Powered by 64-bit NeatTimbre™ DSP engine, this app can help tune more than 400 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

After the trial period ends, you can purchase a full version license. Alternatively, you can keep using the trial version as long as you want but expect a reminder to pop up periodically. There will be no other limitations.

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Most user reviews say that Airyware Tuner is the best guitar tuner, however this app is not only for tuning guitars. It can help you tune more than 400 orchestral instruments including piano, violin, flute, bagpipe, trumpet, clarinet, saxophone, cello, mandolin, veena, church organ, harmonica, recorder, guitar, ukulele, bass, banjo, etc. It works equally well at stage, home, and street. It is beloved by bass guitar players and contrabassists. It is used by professional piano tuners and luthiers. With instant reaction, scientific precision, waveform inspector, denoiser, true strobe view – this tuner is a choice of musicians who care about the best sound.