Strobel

Professional Guitar Tuner

Free

A precision tuner that stays accurate in noisy rooms, plus a drone, metronome, 19 tunings, six temperaments and a full tuning history - free. Strobel is a precision instrument tuner built for players who care about getting it exactly right - fast, accurate, and free of the clutter most tuner apps pile on. TUNE ANYTHING Guitar, bass, ukulele, mandolin, violin, banjo - 19 built-in tunings plus your own custom presets. Auto string detection locks on the moment you pluck; no menus, no fumbling. FOUR WAYS TO SEE YOUR PITCH • Tuner - a clean needle gauge with live cents and Hz • Strobe - the classic stroboscopic display professional techs use, now in your pocket • Strum - play a full chord and see every string at once • Intonation - a guided workflow for setting your saddle correctly, with saved history BUILT TO WORK IN THE REAL WORLD Most tuners are tested in a quiet room and struggle everywhere else. Strobel's pitch engine uses a real noise filter, a longer analysis window for low strings, and a noise gate that learns your room automatically - so it stays accurate on a noisy stage, in a busy rehearsal space, or next to a loud amp. FOR SERIOUS PLAYERS • Six historical temperaments - Equal, Just, Pythagorean, Meantone, Werckmeister III, Kirnberger III - with key selection, so intervals are colored the way you actually want them • Per-string sweetening offsets for intonation compensation • Reference pitch from 432-446 Hz • Capo support, frets 1-7 • A persisted tuning and intonation log with CSV export, see how well your instrument holds tune over time, or hand the data to a tech PRACTICE TOOLS • A reference tone - a sustained, harmonically rich drone at any string's exact target pitch, for tuning by ear • A metronome -- 40-240 BPM, custom time signatures, accent, tap tempo BUILT FOR EVERYONE • Spoken tuning cues, on automatically when VoiceOver is running • Directional "tune by feel" haptics, tune with the phone in your pocket • Left-hand mode • A live signal meter, so you always know it can hear you No account, no ads, no clutter. Just a tuner that gets it right.

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Strobel 1.0.3 is our biggest update yet - new practice tools, way more instruments, and a pitch engine rebuilt to stay accurate even in a noisy room. NEW • Reference tone - sustained drone at any string's exact pitch, so you can tune by ear • Metronome - 40-240 BPM, custom time signatures, accent, tap tempo • 13 new tunings - bass (4/5-string), ukulele, baritone ukulele, mandolin, violin, banjo, 12-string • Six historical temperaments (Just, Pythagorean, Meantone and more) with key selection • Per-string sweetening offsets for players who tune by feel, not just by the numbers • Tuning history - see how well your instrument holds pitch over time, export to CSV • Spoken tuning cues and directional "tune by feel" haptics for eyes-free tuning • A live signal meter so you always know Strobel can hear you MORE ACCURATE, ESPECIALLY IN NOISE We rebuilt the pitch detection core from the ground up: a proper noise filter, a longer analysis window for low strings, and a gate that learns your room's noise floor automatically. Low E in a noisy room used to be the hardest case for any tuner — it's now one of the most reliable. FIXED • A crash when adjusting the metronome tempo or gate sensitivity sliders • Occasional UI stutter caused by audio session handling • A packaging issue that could block installation on some devices Thank you for tuning with Strobel, keep the feedback coming.

The developer, Inovex Solutions SL, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • Inovex Solutions, SL
    Size
    • 2.8 MB
    Category
    • Music
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    • iPad
      Requires iPadOS 18.0 or later.
    Languages
    • English and Spanish
    Age Rating
    4+
    Copyright
    • © 2026 Inovex Solutions SL