LockOn
Most tuners suck at drop tuning.
LockOn doesn't.
Ultra-precision tuning for guitars and basses, built for low strings and fast sessions.

Get the free version of LockOn
Enter your email to receive your download link and personal license key.
LockOn Free uses iLok for activation. A dongle is optional. A free iLok account is required.
By signing up, you agree to receive marketing emails. Unsubscribe at any time. One free license per customer.
You're all set
Check your inbox for your download link and license key.
Features
Drop tuning needs a stable answer.
When a tuner jumps around on the lowest string, you are no longer tuning. You are guessing. LockOn is built to hold the pitch read long enough to make the next move obvious.
Note readout
Shows you the note that LockOn has detected.
Strobe
Rotates based on how flat or sharp a note is. Your job is to tune your instrument to get it to stay still.
Cents display
Shows how many cents flat or sharp you are.
Calibration
Set your reference pitch here.
Audio mute
Sets whether or not the audio signal passes through the tuner.
Settings
Other settings.
What LockOn tracks.
LockOn detects notes from C0 to B8, with pitch tracking from 14Hz to 8kHz. That covers standard guitars and basses, extended-range instruments, and very low tunings.
Compatibility
System Requirements
macOS
- Activation
- iLok License Manager (free)
- OS
- macOS 10.13 or later
- CPU
- Intel or Apple Silicon
- Formats
- VST3 / AU / AAX
Windows
- Activation
- iLok License Manager (free)
- OS
- Windows 10 or later
- CPU
- Intel i5 or equivalent
- Formats
- VST3 / AAX
64-bit only. Internet required for download and activation. iLok dongle optional - activate to your computer.
Support
Frequently Asked Questions
What happens after I purchase?
This is a digital product. After purchase, you will receive an email with your download and activation information.
Do I need an iLok USB dongle?
No. The iLok dongle is optional. You can activate LockOn directly to your computer using the free iLok License Manager app.
How many activations do I get?
LockOn can be activated to 2 locations on your iLok account.
How do I install LockOn?
Use the download link in your order confirmation email, run the installer, then activate with your serial number in iLok License Manager.
Is there a trial version?
Yes. A free 7-day trial is available from the hero section near the top of the page.
What should I use LockOn for?
Use it for guitar and bass tracking, tuning checks during editing, low-tuned instruments, reamping preparation, and fast pitch checks inside your DAW.
How do I get help?
Our support team is standing by. Contact us here.
Industry Voices
From the people making the records.
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Something magical physically happens when you tune an instrument perfectly. I tuned 8 instruments to absolute perfection using LockOn - including a 5 string electric cello, 5 string electric violin, an 8 string guitar, two 7 strings, three 6 strings, and a 5 string bass. This tuner now lives in every template I use for composing music.
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I always have a hardware strobe tuner in front of me, and LockOn is even more accurate than my hardware! You know how you hit that low F# on bass and your pedal tuner starts having a seizure or gives you the silent treatment? Not anymore, LockOn is fast and stupid accurate! No longer will we have to suffer through the quarter-tone-sharp octave chords in your latest pop punk masterpiece, because now you have a sick tuner and you have no more excuses. Now take this and fix that damned G string!
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I've never experienced such an accurate, easy to use and pleasant to look tuner. As a metal bass player I can say that it doesn't miss a beat on very low tuning and slow mode makes it even more precise.
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LockOn is honestly a real pleasure to use. The tuner is accurate and stable and doesn't wobble around in a glitchy way, which can often happen with low tunings. I especially love the Slow mode, it's so smooth! Tuning your guitar while recording is never fun, but this plugin can make your life just a bit easier. Ultimately, that's what it's all about.
![]()
This tuner is a massive life saver for recording our music. It is easily the most responsive and perfect tuner that accurately tracks low tunings with extreme precision. Definitely already a staple in my workflow. Bless you SubMission Audio.
![]()
LockOn tracks low notes better than some physical tuners on the market that actually cost money. This plugin is a no brainer if you own a guitar or bass.
![]()
I can't handle how good this tuner is.
User Reviews
From customers just like you.
this a great tuner that parallels real tuners that guitar techs and luthiers use to attain precise intonation for guitars. I will definitely be using this going forward!
Never had a tuner so accurate on 8 string guitars. Can't be happier than that.
I've used the free version for a while and loved it so much that I bought the full version during a sale. I could have kept using the free version, but it was time to support Submission Audio for their hard work and great product.
Everything is in the title. For me the best guitar tuner ever !
A strobe tuner without the strobe tuner price.
Installed the Plugin in my DAW and it is a nice tuner. Works well, guitar sounds good. What else should I say?

LockOn is an ultra-precision tuner in a minimalist package.
LockOn
As lifelong studio engineers, we were never quite satisfied with the range of plugin guitar tuners on the market. The existing options always seemed to fall short of the revered hardware strobe tuners for accuracy and convenience. LockOn was our answer.
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.
Features
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.

Testimonials

Jesse Zuretti
Riot Games, Marvel
“Something magical physically happens when you tune an instrument perfectly. I tuned 8 instruments to absolute perfection using LockOn - including a 5 string electric cello, 5 string electric violin, an 8 string guitar, two 7 strings, three 6 strings, and a 5 string bass. This tuner now lives in every template I use for composing music.”

John Douglass
Whitechapel, Alluvial, The Contortionist
“I always have a hardware strobe tuner in front of me, and LockOn is even more accurate than my hardware! You know how you hit that low F# on bass and your pedal tuner starts having a seizure or gives you the silent treatment? Not anymore, LockOn is fast and STUPID ACCURATE! No longer will we have to suffer through the ‘quarter-tone-sharp octave chords’ in your latest pop punk masterpiece, because now you have a SICK TUNER and you have no more excuses. Now take this and fix that damned G string!”

Dann Arisi
“I've never experienced such an accurate, easy to use and pleasant to look tuner. As a metal bass player I can say that it doesn't miss a beat on very low tuning and SLOW MODE makes it even more precise.”

Ville Tikkanen
“LockOn is honestly a real pleasure to use. The tuner is accurate and stable and doesn’t wobble around in a glitchy way, which can often happen with low tunings. I especially love the Slow mode, it’s so smooth! Tuning your guitar while recording is never fun, but this plugin can make your life just a bit easier. Ultimately, that’s what it’s all about.”

Patrick Somulay
“This tuner is a massive life saver for recording our (Reflections) music. It is easily the most responsive and perfect tuner that accurately tracks low tunings with extreme precision. Definitely already a staple in my workflow. Bless you SubMission Audio.”

Keyan Houshmand
“LockOn tracks low notes better than some physical tuners on the market that actually cost money. This plugin is a no brainer if you own a guitar or bass.”

Jacob Umansky
“I can't handle how good this tuner is.”
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.
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.
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, no-obligation 7-day trial above.
Things to know
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.
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
The use of an iLok USB dongle is optional. You can activate this product onto your computer.
This product can be activated to 2 locations in your iLok account.
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
this a great tuner that parallels real tuners that guitar techs and luthiers use to attain precise intonation for guitars. I will definitely be using this going forward!
Never had a tuner so accurate on 8 string guitars. Can't be happier than that.
I've used the free version for a while and loved it so much that I bought the full version during a sale. I could have kept using the free version, but it was time to support Submission Audio for their hard work and great product.
Everything is in the title. For me the best guitar tuner ever !
A strobe tuner without the strobe tuner price.
Installed the Plugin in my DAW and it is a nice tuner. Works well, guitar sounds good. What else should I say?


















