Lossless Audio Extractor
GRATUIT
Gratuit
Description
The honest tuner. Free, no ads, no subscriptions, no sign-up, no data collection.
iontuner does one thing well: it helps you tune your instrument quickly and accurately. Open the app, pick your instrument, play a string, watch the needle. That's it.
INSTRUMENTS
Built for guitar, 12-string guitar, bass, double bass, ukulele, violin, viola, cello, mandolin, banjo, piano, and chromatic mode. Tap "Show world instruments" to access oud, saz, charango, cuatro (Venezuelan and Puerto Rican), tres cubano, bouzouki (Greek and Irish), balalaika, erhu, and pipa — with proper regional tuning traditions for each.
40+ TUNINGS
Standard, Drop D, DADGAD, Open G, Half Step Down, and dozens more. Five double bass tunings including the historical Viennese tuning. Multiple regional traditions for oud (Arabic, Iraqi, Turkish, Egyptian) and bouzouki (tetrachordo, trichordo, Irish). Star your favorites for quick access.
FIVE CONCERT A PITCHES
440 Hz (Standard), 442 Hz (Orchestral), 432 Hz (Alternative), 430 Hz (Classical), and 415 Hz (Baroque). For period instrument musicians, modern orchestras, and everyone in between.
SUB-CENT PRECISION
Standard mode hits ±1 cent accuracy for everyday tuning. Pro mode goes sub-cent for piano tuning, double bass low octave, and reference work.
CUSTOM TUNINGS
Build your own tunings string by string. Save unlimited custom presets. Frequencies update automatically when you change Concert A.
REFERENCE TONES
Play a clean reference pitch for each string. Tap, tune by ear, tap to stop.
DESIGNED FOR YOUR INSTRUMENT
Each instrument has its own detection profile — buffer sizes, filter cutoffs, and harmonic correction tuned for what you're actually playing. Bowed strings get extra smoothing. Bass instruments get expanded low-frequency analysis. Double bass detection reaches down to B0 (30.9 Hz).
WHAT YOU WON'T FIND
No ads. No subscriptions. No in-app purchases. No "premium tier." No data collection. No analytics. No account creation. No paywall after seven free uses. No "unlock with rating." Nothing tracking you, ever.
10 LANGUAGES
English, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Chinese (Simplified), Japanese, and Korean.
iPad AND iPHONE
Designed for both. iPad gets a sidebar layout that keeps everything visible.
PRIVACY
Audio is analyzed entirely on your device. Nothing leaves your phone. Ever.
Built by a solo developer who got tired of tuner apps full of ads and paywalls. iontuner is what a tuner app should be.
Open the app. Tune your instrument. Close the app. Make music.
iontuner does one thing well: it helps you tune your instrument quickly and accurately. Open the app, pick your instrument, play a string, watch the needle. That's it.
INSTRUMENTS
Built for guitar, 12-string guitar, bass, double bass, ukulele, violin, viola, cello, mandolin, banjo, piano, and chromatic mode. Tap "Show world instruments" to access oud, saz, charango, cuatro (Venezuelan and Puerto Rican), tres cubano, bouzouki (Greek and Irish), balalaika, erhu, and pipa — with proper regional tuning traditions for each.
40+ TUNINGS
Standard, Drop D, DADGAD, Open G, Half Step Down, and dozens more. Five double bass tunings including the historical Viennese tuning. Multiple regional traditions for oud (Arabic, Iraqi, Turkish, Egyptian) and bouzouki (tetrachordo, trichordo, Irish). Star your favorites for quick access.
FIVE CONCERT A PITCHES
440 Hz (Standard), 442 Hz (Orchestral), 432 Hz (Alternative), 430 Hz (Classical), and 415 Hz (Baroque). For period instrument musicians, modern orchestras, and everyone in between.
SUB-CENT PRECISION
Standard mode hits ±1 cent accuracy for everyday tuning. Pro mode goes sub-cent for piano tuning, double bass low octave, and reference work.
CUSTOM TUNINGS
Build your own tunings string by string. Save unlimited custom presets. Frequencies update automatically when you change Concert A.
REFERENCE TONES
Play a clean reference pitch for each string. Tap, tune by ear, tap to stop.
DESIGNED FOR YOUR INSTRUMENT
Each instrument has its own detection profile — buffer sizes, filter cutoffs, and harmonic correction tuned for what you're actually playing. Bowed strings get extra smoothing. Bass instruments get expanded low-frequency analysis. Double bass detection reaches down to B0 (30.9 Hz).
WHAT YOU WON'T FIND
No ads. No subscriptions. No in-app purchases. No "premium tier." No data collection. No analytics. No account creation. No paywall after seven free uses. No "unlock with rating." Nothing tracking you, ever.
10 LANGUAGES
English, Spanish, Portuguese, French, German, Italian, Russian, Arabic, Chinese (Simplified), Japanese, and Korean.
iPad AND iPHONE
Designed for both. iPad gets a sidebar layout that keeps everything visible.
PRIVACY
Audio is analyzed entirely on your device. Nothing leaves your phone. Ever.
Built by a solo developer who got tired of tuner apps full of ads and paywalls. iontuner is what a tuner app should be.
Open the app. Tune your instrument. Close the app. Make music.
Nouveautés (v2.4.9)
v2.4.9 — Major update.
DOUBLE BASS
Full support for the lowest orchestral string instrument. Standard 4-string, Solo Tuning, 5-string, C Extension, and the historical Viennese tuning. Detection down to B0 (30.9 Hz) with optimizations for both arco (bowed) and pizzicato (plucked) playing.
10 WORLD INSTRUMENTS
Oud (with four regional tunings: Arabic, Iraqi, Turkish, Egyptian), saz/bağlama (Turkey), charango (Andes), cuatro venezolano and puertorriqueño, tres cubano, bouzouki (Greek and Irish), balalaika (4 sizes), erhu, and pipa. Hidden behind a "Show world instruments" toggle so the picker stays clean.
FIVE CONCERT A PITCHES
Added 415 Hz (Baroque), 430 Hz (Classical), and 442 Hz (Orchestral) to the existing 432/440 options. For period instrument musicians and modern orchestras.
BETTER DETECTION
Significantly improved handling of low fundamentals (bass guitar, cello, double bass), bowed instruments (smoother needle on arco notes), and high-fret guitar notes (longer sustain detection).
SIMPLER DETECTION MODES
Four modes reduced to two — Standard and Pro. Standard handles everything reliably; Pro is for situations where sub-cent precision matters (piano tuning, double bass low octave, reference work).
Plus dozens of small refinements: better harmonic correction, startup transient handling, instrument-specific filters, and per-instrument confidence thresholds.
Still free. Still no ads. Still no subscriptions. Forever.
DOUBLE BASS
Full support for the lowest orchestral string instrument. Standard 4-string, Solo Tuning, 5-string, C Extension, and the historical Viennese tuning. Detection down to B0 (30.9 Hz) with optimizations for both arco (bowed) and pizzicato (plucked) playing.
10 WORLD INSTRUMENTS
Oud (with four regional tunings: Arabic, Iraqi, Turkish, Egyptian), saz/bağlama (Turkey), charango (Andes), cuatro venezolano and puertorriqueño, tres cubano, bouzouki (Greek and Irish), balalaika (4 sizes), erhu, and pipa. Hidden behind a "Show world instruments" toggle so the picker stays clean.
FIVE CONCERT A PITCHES
Added 415 Hz (Baroque), 430 Hz (Classical), and 442 Hz (Orchestral) to the existing 432/440 options. For period instrument musicians and modern orchestras.
BETTER DETECTION
Significantly improved handling of low fundamentals (bass guitar, cello, double bass), bowed instruments (smoother needle on arco notes), and high-fret guitar notes (longer sustain detection).
SIMPLER DETECTION MODES
Four modes reduced to two — Standard and Pro. Standard handles everything reliably; Pro is for situations where sub-cent precision matters (piano tuning, double bass low octave, reference work).
Plus dozens of small refinements: better harmonic correction, startup transient handling, instrument-specific filters, and per-instrument confidence thresholds.
Still free. Still no ads. Still no subscriptions. Forever.
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