Strobe-grade precision
A five-band strobe display that slows and locks still as you come into tune, with readings to a tenth of a cent. On reference tones it is accurate to within half a cent.
Strobe tuner · in your browser
Strobe-grade tuning, wherever your instrument is.
TrueStrobe puts a true multi-band strobe tuner on your phone, tablet or laptop. Nothing to install. Built by a luthier at Selfe Guitars for setups, intonation and everyday tuning.
No card needed. Every Pro feature included during the trial.
Any device, no install
Open it on the phone on your bench, the tablet on your music stand or the laptop in the studio. Sign in once and each device stays signed in while you use it.
Temperaments & Guitar Sweetener
Pro adds Just Intonation, Pythagorean and ¼-comma Meantone with a selectable key, plus the Guitar Sweetener for sweeter-sounding open chords.
Built by a luthier
Made at Selfe Guitars for real setup and intonation work, where "close enough" isn't. The same accuracy whether you are a player or a pro.
Everything you need on the bench
- 14 instrument presets: guitar (standard, drop D, open G, open D, DADGAD), bass (4- and 5-string, drop D), violin, viola, cello, mandolin, ukulele, or fully chromatic
- Auto or pick-a-note modes, with the matched string shown as you tune
- A4 calibration from 400 to 480 Hz, transpose ±12 semitones and capo 0–12
- Stable, Balanced or Responsive display to suit old strings, live rooms or studio work
- Dark, light and colourblind-friendly themes
- Use your device's microphone, a clip-on pickup or an audio interface
Simple pricing. Start free.
Every account starts with a free 14-day trial of Pro. No card needed; nothing renews until you choose a plan.
Standard
For players who want a precise strobe in equal temperament.
£9.99 per year
- Strobe tuner with sub-cent readout
- Equal temperament
- All 14 instrument presets
- A4 calibration, capo and transpose
- Tune on 1 device at a time
Most complete
Pro
For luthiers, techs and players who want every tuning tool.
£19.99 per year
- Everything in Standard
- Just, Pythagorean and ¼-comma Meantone, with selectable key
- Guitar Sweetener
- Tune on up to 3 devices at once
Prices in GBP and include VAT. Checkout shows your local currency. Cancel any time and keep access until the end of the period you've paid for.
Questions
What do I need?
A modern browser (Chrome, Edge, Firefox or Safari) and a microphone. Your device's built-in mic works; a clip-on pickup or audio interface gives the cleanest signal in a noisy room.
What happens when the free trial ends?
Nothing is charged: there's no card on file. The tuner locks until you choose a plan, and your settings are kept.
Can I use it on more than one device?
Yes. Sign in on as many devices as you like. Standard tunes on one device at a time; Pro on up to three at once.
How do I sign in?
Enter your email and we send a 6-digit code: no password to remember. If it doesn't arrive, check your junk or spam folder for an email from tuner@selfeguitars.co.uk.
Does it work offline?
Not yet. TrueStrobe needs an internet connection to sign in and to keep your session active.
How do I cancel?
Any time, from Manage subscription in the tuner. You keep access until the end of the period you've paid for.
