# Chromtuner: Guitar Tuner — Precision tuning & Metronome > Precision tuning & Metronome (iPhone/iPad app by Clemens Posch.) - Source: https://appshunter.io/ios/app/chromtuner-guitar-tuner/id6787217501 (this page in markdown: same URL + `.md`) - Developer: [Clemens Posch](https://appshunter.io/developer/6786702462) - Category: Music, Productivity - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 17.0 · 8 MB - Languages: American English, German (Germany) - Released: 2026-07-12 - Data updated: 2026-09-04 - User reviews in markdown: https://appshunter.io/ios/app/chromtuner-guitar-tuner/id6787217501/reviews.md ## What is Chromtuner? ChromTuner is a precision chromatic tuner with the soul of vintage hardware — a warm LED display, instant response, and pitch detection accurate to a fraction of a cent. It's built on the same audio engine as ChromTuner for macOS, trusted by guitarists, string players, and instrument techs. FREE MEANS FREE The free version is a complete tuner, not a demo: • Chromatic mode — tune any instrument, any note, from a 5-string bass's low B to the top of a violin's range • Guitar presets: Standard E and Drop D, with tap-to-play reference tones for every string • Two displays: the classic LED bar meter and a vintage analog needle • A gentle haptic tap the moment a string locks in tune • Full detection accuracy — the free version uses the exact same engine as Pro • No ads. No account. No tracking. Ever. ACCURACY YOU CAN TRUST Under the retro looks is a serious instrument: YIN pitch detection with octave-error correction (so a guitar's strong second harmonic can't fool it), median filtering to reject transients, and processing at the microphone's full sample rate. It hears a quietly plucked acoustic string and stays rock-steady while you tune. CHROMTUNER PRO — ONE PURCHASE, YOURS FOREVER A single in-app purchase unlocks everything. No subscription, no account: • All 17 tunings: DADGAD, Open G, half-step down, 7-string, 4- and 5-string bass, violin, viola, cello, double bass, ukulele, mandolin, and banjo • Peterson-style strobe display for sub-cent precision, plus a minimal wave view • 8 temperaments with a movable root: Just intonation, Pythagorean, ¼-comma meantone, Werckmeister III, Kirnberger III, Vallotti, and Young — for early music, keyboards, and curious ears • A4 calibration from 349 to 500 Hz — dial in 440, 442, Baroque 415, or detect the reference by listening to another instrument • Capo mode: clip on at any fret and strings still read by name • Transpose ±11 semitones for horn keys and alternate readings • Hz readout for techs and tinkerers • Full personalization: accent colors, fonts, meter styles, LED glow, corner roundness — design your own instrument and save your signatures MADE FOR THE STAGE AND THE COUCH A big note readout you can read from across the room, thumb-reach controls for one-handed use, true dark themes for dim stages, and a screen that stays awake while you tune. PRIVATE BY DESIGN The microphone signal is analyzed on your device in real time and is never recorded, stored, or sent anywhere. ChromTuner works completely offline and collects no data at all. ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | ChromTuner Pro | $6.99 | one-time | ## Version history (last 5 releases) ### 1.3.1 — 2026-08-26 Fixes the tuner on Apple Watch. Once the app had been in the background — wrist down, a glance at the watch face — the tuner stopped listening, and the screen stayed on RAISE TO TUNE until you reopened the app. It now picks straight back up when you return. Thanks to the player who reported it. ### 1.3.0 — 2026-08-20 REMINDERS THAT ACTUALLY REACH YOU ChromTuner has tracked string life since 1.2, but it could only tell you if you went looking. Now it comes to you: a heads-up a week before a set is due, then once more on the day. Nothing while a set is overdue — one reminder, not a daily nag. Free for everyone, on by your choice, and never a surprise. TELL IT WHEN THE STRINGS ACTUALLY WENT ON Before this, every set was recorded as fitted the moment you added the instrument — which is almost never true. You add a tuner to a guitar you already own, with strings already on it. Now the fitted date is yours to set, so the countdown starts from the truth instead of from the day you found the app. A STRINGS PAGE THAT ANSWERS THE QUESTION Cards now say what you want to know — "10 days left", "14 days overdue" — instead of a number that only means something if you remember the interval. Instruments that are due sort to the top, and when heavy playing rather than time is what wore a set out, it says so. GERMAN LANGUAGE ChromTuner now also speaks german. The whole app — every screen, every reminder, every setting. LOUDER REFERENCE TONES Tap a string and you'll hear it. The reference tones were quietly delivering about half the level they were meant to, which was hardest on the low strings, exactly where a phone speaker needs the most help. ALSO • Small fixes and polish throughout. ### 1.2.1 — 2026-08-19 small refinements under the hood. ### 1.2 — 2026-08-17 Practice, not just tuning. METRONOME A metronome built into the same instrument, sharing the tuner's LED display — 40–240 BPM, time signatures from 2/4 to 7/8, tap tempo, and an accented downbeat. Free for everyone, on iPhone and Apple Watch. STRINGS Add your instruments and stop guessing whether a set is due. ChromTuner tracks both how long your strings have been on and how much you've actually played them, counting the sessions you tune — so the guitar in the case and the one that gigs aren't treated the same. Pick up a different instrument and the tuner follows: choose it and the tuning switches with it. One instrument free; Pro tracks your whole collection. ON APPLE WATCH The metronome is on your wrist too. It clicks in time and taps the beat, so you can keep tempo with both hands on the instrument. Swipe between tuner and metronome; the Digital Crown sets the tempo. A BIGGER DISPLAY The meter, strobe, needle and wave now fill nearly two-thirds of the screen, with the note and cents readouts tucked into the bottom corners — far more room for the part you're actually watching. New display icons that look like the displays they switch to. ALSO FIXED • Assorted fixes and polish throughout. ### 1.1 — 2026-07-16 ChromTuner is now on your Apple Watch! • New app for Apple Watch — tune hands-free right from your wrist: the same precision engine, a live string indicator that lights up as you move across the neck, and a haptic tap the moment a string locks in. Turn the Digital Crown to switch tunings. • New tuning: Open D joins the collection — 17 tunings total. • Smarter calibration — "detect" now works with any held note, not just an A. • The display now clears properly during loud, unpitched noise instead of holding the last note. • VoiceOver now speaks the live tuning reading on iPhone and Apple Watch. • Assorted fixes and polish throughout. Works free on Apple Watch, just like on iPhone: chromatic, Standard E and Drop D included. Pro unlocks everything, everywhere — one purchase, forever. ## Apps similar to Chromtuner | App | Rating | Price | Category | | --- | --- | --- | --- | | [Setlist Helper](https://appshunter.io/ios/app/setlist-helper/id939098002) | 4.8 (6) | Free | Music | | [XME TRIGGERS](https://appshunter.io/ios/app/xme-triggers/id1659992674) | 4.9 (1,059) | Free | Music | | [Worship Backing Tracks](https://appshunter.io/ios/app/worship-backing-tracks/id1241843183) | 4.9 (4,863) | Free | Music | | [Any Ringtone Maker & Saver](https://appshunter.io/ios/app/any-ringtone-maker-and-saver/id6473719154) | 4.1 (86) | Free | Music | | [Ambient Pad: Worship Pads](https://appshunter.io/ios/app/ambient-pad-worship-pads/id1510233456) | 2.9 (15) | Free | Music | | [Beat Station - Drum Machine](https://appshunter.io/ios/app/beat-station-drum-machine/id1207156644) | 4.5 (496) | Free | Music | ## Related topics [precision strobe tuner](https://appshunter.io/ios/topics/precision-strobe-tuner) · [alt tunings](https://appshunter.io/ios/topics/alt-tunings) · [drop c tuner](https://appshunter.io/ios/topics/drop-c-tuner) · [dulcimer tuner simple mixolydian](https://appshunter.io/ios/topics/dulcimer-tuner-simple-mixolydian) · [roadie 4 tuner](https://appshunter.io/ios/topics/roadie-4-tuner) · [tuner for trombone](https://appshunter.io/ios/topics/tuner-for-trombone) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*