Ultra Precision Tuner - Audio Plugin


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LockOn is an ultra-precision tuner in a minimalist package. Its unrivalled ability to track ultra-low pitch on stringed instruments quickly and accurately is its defining feature.

The rapid, vector-based dual strobe/cents-meter display offers the best of both worlds, allowing extreme tuning precision in an intuitive package.

The UI is infinitely resizable, allowing for both 'fast' and 'slow' tracking modes so you can tune exactly how you want.

LockOn comes in both free and pro variants:

The free version notifies users of product deals on the SubMission Audio store via an in-app banner. The pro version removes the banner and the 'free' logo.

Note that the free version is not compatible with iLok cloud, only machine and dongle activations are supported.


Tuning Range: C0 - B8 (so drop C... and then down another octave!)

Frequency Range: 14Hz - 8kHz (that's lower than human hearing!)

Dual Display: Cents-based LED bar tuner & rotating strobe tuner for maximum precision.

Tuning Speed: Choose between 'Fast' and 'Slow' tracking speeds, to suit your preference.

Display Preference: Choose whether the display denotes sharps or flats, depending on your musical sensibility.

Reference Frequency: Alters the tuner's foundation by adjusting the base calibration frequency. Default is A = 440Hz.

Mute Output: Silences the output.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Click SAVE to activate the section

See It In Action

System requirements


VST3/AAX/AU supported host.
iLok License Manager and an iLok account are required, both are free. Dongle not required.
macOS 10.13 or later.
Intel or Apple Silicon cpu.


VST3 or AAX supported host.
iLok License Manager and an iLok account are required, both are free. Dongle not required.
Windows 10 or later.
64-bit only.
Intel i5 or equivalent cpu.

Compatible DAWs

Any modern DAW supporting VST3, AAX or AU. We have successfully tested the following:

  • Cubase
  • Reaper
  • Pro Tools
  • Logic
  • Ableton Live
  • Studio One
  • FL Studio

Still unsure if your DAW is supported? Grab the free version above and test it with no risk.

Things to know

Order details

This is a digital product and does not include a physical item. Upon purchase, you'll receive an email with a serial number for redemption. Typically, this is instantaneous.

Refunds, returns and transfers

Due to the irrevocable nature of digital sales, we are unable to offer refunds on this product.

Licenses delivered for this product are immutable and non-transferable to other individuals.


Our support team are standing by to help. Feel free to contact us here.


VST and VST3 are trademarks of Steinberg Media Technologies GmbH.
macOS and Audio Unit are trademarks of Apple, Inc.
AAX is a trademark of Avid, Inc.
Windows is a trademark of Microsoft, Inc.

Frequently Asked Questions

Do I need an iLok USB dongle?

The use of an iLok USB dongle is optional. You can activate this product onto your computer.

How many activations do I get?

This product can be activated to 2 locations in your iLok account.

How do I install this product?

Use the download link provided in your order confirmation to download the installer files. Run the installer. Make sure you have iLok License Manager installed and you have registered for a free iLok account

Customer Reviews

Based on 292 reviews
colton martin


Philippe Garvie
What a great tuner plugin!

The best, simply the best, better than all the rest :-)

Philippe Garvie
Greatest guitar & bass tuner!

I have been looking for such a guitar & bass tuner in VST format for the longest time. I've been a Peterson Strobo Tuner user for the last 20 years, and this plugins gives me the same results, even a bit better to be honest. It is also FREE, so why not give it a go!!

Uğurcan İncesu


Ricardo Ariza Galindo

loved this plugin


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