Strobe Tuner Pro: Guitar Tuner

A4tune Labs

About this app

Strobe Tuner Pro is the only tuner that shows the real stroboscopic effect on your device. It is extremely accurate, suitable for guitar, violin, bass, ukulele, viola, cello, banjo or shamisen. By purchasing it, you can save hundreds of dollars for a physical strobe tuner.

Professionals appreciate the Strobe Tuner Pro's accuracy, beginners quickly learn to tune instruments properly. Strobe Tuner Pro is easy to use thanks to an additional chromatic tuner that helps you when your instrument is way out of tune.

The chromatic and strobe tuners are independent, but both use the same input from the built-in microphone of your phone or tablet for their advanced algorithms.

Chromatic tuner

The chromatic tuner accurately detects the frequency of the tone played on your instrument, and shows it on the chromatic scale. The target strings are highlighted on the scale, and you can see how far is the tone from being in tune. When you get close enough, you can use the strobe tuner for fine tuning.

Strobe tuner

When the pattern is rotating to the right, it means the tone is too high, and you need to tune down. When it is rotating to the left, just tune up. The slower the pattern moves, the better is your instrument tuned.

If you are in doubt how to use the tuner, please read the built-in help, and see the examples of the tuning process.

The algorithms of both tuners are independent - the chromatic tuner uses the Fast Fourier Transformation, but the algorithm in the strobe tuner is much closer to what you can find in oscilloscopes, and is computed directly on the GPU of your phone or tablet.

Tuning by ear

You can also play the reference tones using the buttons at the bottom of the screen. The tone is synthesized, and respects the setting of the concert pitch.

Instruments

The tuner has been tested with many guitars, violins, basses, ukuleles, violas, cellos and banjos, and we constantly grow our test coverage with new recordings of the instruments. You can switch between the guitar and the violin tuning in the settings.

Metronome

The tuner also features a built-in metronome, combined with a chromatic tuner. This makes practicing much easier - you can control the metronome and check the intonation at the same time.

Features:

• Professional guitar tuner
• Other instruments: Violin, bass, ukulele, viola, cello, banjo, shamisen
• Manual mode that works exactly as a physical strobe tuner
• Metronome
• Suitable for beginners too
• Awesome precision
• Advanced noise cancellation - works even with a metronome on
• The most favorite alternate guitar, ukulele, banjo and shamisen tunings
• Easy to use
• Extreme accuracy
• Plays reference tones
• First-start tutorial to understand the usage
• Built-in help to understand the app better
• Two independent tuning algorithms: chromatic tuner using the Fourier transformation and strobe tuner emulating the stroboscopic effect
• Quick, precise, and accurate tuner
• Concert pitch frequency setting
• Note naming: English, European, Solmization
• Equal temperament
• Quick access to settings to switch between instruments
• Tested with many instruments, recorded for use in a test suite that is regularly run before releases

Strobe Tuner Pro is ideal for all violins, guitars, basses, ukuleles, violas, cellos and banjos. You will absolutely love the sound of your instrument, and the music you play!

Ratings and reviews

Simple but accurate tuner. Works as expected on various phones over the years. It could be a bit better at detecting and sustaining notes at frequencies like the low E, D, or B on Bass. But for guitar and I imagine any instrument with similar octave range, it works perfectly. Doesn't have all the bloat other apps come with just a tuner. Would give 5 stars if it had a better skin for it or even if it let you customize the ui. Still, this is my preferred tuner. It's worth its one-time fee.

I was thinking of trying a strob tuner but they are expensive and I wasn't sure if would be worthwhile on a banjo due to all the sympathetic ringing from other strings. It works quite well although it is difficult to tune banjo perfectly with planetary tuners which are for quickly changing tunings. All in all, it works well enough that I'll save my money and use this.

The App works very well and is more exact than my good old Korg CA-20. The only really small gripe I have, is the strobe which seems a bit jumpy in automatic mode Yet with my Gibson J45 and the Taylor 214CE it gives an excellent tuning with nothing to whish for. The metronome is a handy addition You guys may want to work on the stability of the strobe a bit as this really is a great feature. The money for the Pro version is well spent, after all.

What's new

• Reworked metronome for ultimate accuracy.
• New setting: Choose between circular and rectangular strobe shape.
• Korean translations thanks to Taeyeong Kim.