GuitarTunePro

6.8easy start · #22of 32
in Musical Tuner Apps

Free to practise onyes
Free trialno
Well documentedyes
Runs where you workyes

Runs on Android, iOS, Web.

GuitarTunePro is ranked #22 of 32 in musical tuner apps on The Geeks Club. It runs on Android, iOS, Web. There is a free plan.

GuitarTunePro plans and pricing

All plans

Free Free Free; no subscription Core tuner is free · no signup required · no ads on core tuner guitartunepro.com · 8 Oct 2026

Compared on musical tuner apps

Free plan: Yes
Alternate tunings: Yes
Intonation monitoring: Yes
Offline mode: Yes
Available platforms: desktop

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The record

What it does: GuitarTunePro is a browser based chromatic tuner that uses a device microphone to tune guitar, bass, and ukulele.
Tuning detection: The live tuner uses a YIN inspired autocorrelation algorithm on 4096 samples at a 48 kHz sample rate.
Instruments: It supports 6 string, 7 string, and 12 string guitars, 4 and 5 string basses, and ukulele.
Tuning presets: Presets include Standard, Drop D, Half Step Down, Full Step Down, Open G, Open D, Open A, and more.
Tuner features: The tuner includes automatic string detection, a real time cent readout, a visual peg guide, reference tone playback, and Beginner, Standard, and Pro accuracy modes.
Offline use: The site says the tuner works offline after its first load as a Progressive Web App.
Audio privacy: Audio processing happens on the user's device, and the site says audio data is never sent to a server.
Accuracy limits: In the site's synthesized signal tests, single reading error stayed under 5 cents in quiet conditions and had a worst case around 8 cents in noisy conditions; the page says it did not test real guitars or microphones.
Additional tools: The site also offers a chord finder, ear training, string tension tool, chord library, metronome, and vocal pitch detector.
Support: The contact page says the maker typically responds to support emails within 24–48 hours.
Intended users: The maker describes it as designed for beginners, intermediate and professional players, teachers, and students.
Price from: Free

Where it ranks on The Geeks Club

Best Musical Tuner Apps in 2026#22 of 32

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Sources

guitartunepro.com· checked 8 Oct 2026
guitartunepro.com/about· checked 8 Oct 2026
guitartunepro.com/accuracy· checked 8 Oct 2026
guitartunepro.com/contact· checked 8 Oct 2026