NiceTuner vs iontuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NiceTuner
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NiceTuner is a professional instrument tuner designed for musicians of all levels. Whether you're tuning a guitar before a gig, practicing violin, or exploring traditional instruments, NiceTuner delivers studio-quality precision in your pocket. KEY FEATURES ◆ Multi-Instrument Support • Guitar (Standard, Drop D, Open G, DADGAD) • Bass (Standard, Drop D, 5-string) • Ukulele (Standard C, Low G, D tuning) • Violin (Standard tuning) • Piano (Full 88-key range) • Erhu (D-A, C-G, G-D tunings) • Guzheng (D Major, G Major) ◆ Professional-Grade Precision • High-resolution 16K-point FFT analysis • ±0.1 cent accuracy for precise tuning • Real-time pitch detection at 30 FPS • Adaptive sensitivity for any environment ◆ 4 Musical Temperaments • Equal Temperament (modern standard) • Just Intonation (pure intervals) • Pythagorean (classical tuning) • Meantone (Renaissance music) ◆ Reference Tone Generator • 4 instrument sounds: Piano, Electric Piano, Guitar, Violin • Full chromatic range across all octaves • Quick-play scales: C Major and Chromatic • Adjustable A4 frequency (400-480 Hz) ◆ Smart Tuning Features • String-by-string guided tuning mode • Auto-advance to next string when in tune • Note stability detection prevents false readings • Color-coded visual feedback (green/yellow/red) ◆ Beautiful Design • Premium Aurora theme with glassmorphism effects • Dark and Light mode support • Smooth animated dial and level meters • Clean, intuitive interface ◆ Customizable Settings • Pointer damping (Low/Medium/High) for different instruments • Detection sensitivity adjustment • Reference pitch: 432 Hz, 440 Hz, 442 Hz, or custom • Volume control for reference tones ◆ 9 Languages Supported English, 日本語, Deutsch, Français, 简体中文, 繁體中文, 한국어, Español, Português Perfect for guitarists, violinists, pianists, and enthusiasts of traditional instruments like erhu and guzheng. NiceTuner combines professional accuracy with an elegant user experience. Download NiceTuner and tune with confidence.
iontuner
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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.
Screenshots
Verdict
NiceTuner and iontuner are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 6, 2026 and September 14, 2026 respectively.
| Parameter | NiceTuner | iontuner |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 | 17.6 |
| Further details — not scored | ||
| Size | 27 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Guizhou Vanilla Information Technology Co., Ltd. | Seth Adam Mundall |
In-app purchases
NiceTuner
No in-app purchases
iontuner
No in-app purchases









