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

This is the best, most accurate and easy to use tuning app! I used to have the analog version a couple decades ago. It's really important to be in tune! This app is a perfect (and much less expensive) replacement. Note that, for the greatest accuracy, I did have to switch over to manual mode. Very nicely done! If you're a musician, you need this!

I love this tuner 👍😁. I love that you can see "cents". To see why they can be important check out James Taylors video on tuning your guitar strings a few cents flat (different amounts for each string). Its eye opening. Also this tuner is just elegantly laid out. I use it for my elec and acoustic guitars, ukes, and elec bass. Get it now! later me: still like this app. i play in drop tunings now and they are in there. plus uke tunings. as I said above you can check tuning in cents.

Thank you A4Tune labs. I must ask, since you recommended this product (Strobe tuner pro) to me that you look into the functioning of the manual strobe tuner on it, because it does not function the same as your other excellent app 'guitar and violin tuner'. There isn't a way to pick a particular note / frequency and then tune to that, which is how it works in the other app. I'd appreciate if you'd fix the manual tuner as it's a real sore point in an otherwise great app.

What’s new

• Tap tempo now feels smoother and handles missed taps better.
• More responsive and reliable reference-tone playback.
• New guitar tuning: Cigar box guitar (G2 D3 G3).
• New initial setup guide.
• Visual improvements to the tutorial.
• Clearer guidance when microphone access is unavailable.
• Fixed the appearance on square-shaped phones.