n vs KeyTuner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
n
Easily tune a variety of musical instruments using your smartphone's microphone. Offers high precision with advanced audio recognition and multiple visual feedback modes. Supports manual tuning and calibration for custom needs.
- High precision tuning
- Spectrum Analyzer
- Instrument selection
- Tune Fork reference tone
- Needle tuner
- Adjustable sensitivity and precision
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Tune your guitar, bass or other instruments with n-Track Tuner. Use this tuner in an easy, intuitive and free way with the integrated microphone of your smartphone. Downloaded over 5 million times! Just put your iPhone, iPod Touch or iPad next to your instrument and play each string. High precision and sensitivity thanks to the advanced audio recognition algorithm also used for n-Track Studio 8. n-Track Tuner works great as a guitar tuner, violin, viola, violoncello, bass, piano and wind instruments tuner. NEW: 6 different views: •||| Spectrum Analyzer |||• The spectrum analyzer provides a visual feedback of the notes played by the instrument and shows a small arrow to highlight the harmonic whose pitch the tuner is tracking. •||| Instruments |||• Use the manual mode to select and tune each string according to the selected instrument tuning (guitar, bass, violin, viola, cello, double bass, banjo, ukulele, mandolin, harp, and piano) Get the pro version to unlock all instruments views. •||| Tune Fork |||• For those who prefer to manually tune their instrument the 'Diapason' view lets you play a reference tone, 'A' (440 hz) or any other note that you can select dragging the frequency slider. •||| Needle |||• A handy old style tuner to accurately detect the frequencies of your instrument. •||| Sonogram |||• (PRO feature) The "Sonogram" tab shows how the frequency spectrum evolves with time, and shows how the note that the tuner is following evolves by tracing a green line. •||| 3D view |||• (PRO feature) 3D view lets you follow how the audio spectrum changes over time. ADVANCED FEATURES • adjust tuning sensitivity and precision up to 0.1 cents • western and latin note namings, alternate temperaments • calibrate the tuner for non-standard tunings: tune the reference note, tap on the display and select 'Calibrate' to set the note as the new reference • adjust the spectrum analyzer visualization options, select thicker spectrum lines, smooth out or highlights peaks, increase or decrease spectrum accuracy, zoom into a specific area of the spectrum Contact us: http://ntrack.com/support
KeyTuner
This app offers precise chromatic tuning for a wide range of instruments with a clear, visual interface. It features advanced algorithms for accurate detection of notes, including those with overtones and vibrato, making it suitable for both tuning and intonation practice.
- Full-range chromatic tuning
- Visual feedback for fine and coarse tuning
- Advanced digital algorithm for precision
- Vibrato detection
- Tone generation for droning
- Supports transposing instruments
- Multiple color schemes
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KeyTuner is a full-range accurate and easy to use chromatic tuner that gives clear feedback with a visual design that makes maximum use of the screen. A consistent horizontal display for fine and coarse tuning allows easy tracking of the needle as a note is played. The display is suitable for both tuning and intonation practice. Quick mode provides fast confirmation in live situations. Tone generation is also supported for droning. An advanced digital algorithm is used to allow precise tuning of all instruments (strings, woodwinds, brass, plucked string, etc). Many tuners have difficulty with low registers or those with many overtones but KeyTuner employs algorithms specifically aware of harmonic distributions. By taking advantage of the real-time behavior of multiple waveforms, vibrato can be detected and is shown as a highlighted region around the needle. Features: - Accuracy of 0.1 cent (0.001 semitone) - Works with all instruments from A0 to C8 - Large easy-to-read meter for fine tuning - Space efficient display for coarse tuning - Quick mode for easy adjustments - Color schemes: Light, Warm, Dark - 3 levels of needle dampening to control responsiveness - Temperament selection: Just, Equal-Tempered, Strings - Supports transposing instruments - Tone/drone generation - Concert Pitch (A4) calibration
Screenshots
Verdict
The clearest difference is in-app purchases: KeyTuner at none against n's 1. KeyTuner also leads on ads (none vs shown) and review sentiment (91% vs 78%). On price, rating, ratings volume and update cadence there is nothing between them.
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. n sells 1 one-off in-app purchase. KeyTuner asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for n against 4.7 for KeyTuner. Both are backed by a comparable volume of ratings — 3.2K and 1.8K respectively. Written reviews are what separate them: 78% of n's written reviews are positive against 91% of KeyTuner's.
n ships an update every 2 weeks, KeyTuner every 6 days. Both last shipped on October 26, 2026.
| Parameter | n | KeyTuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3.2K ratings) — better | 4.7 (1.8K ratings) |
| Positive reviews | 77.7% of reviews | 90.7% of reviews — better |
| Number of ratings | 3.2K — better | 1.8K |
| Update frequency | Every 2 weeks | Every 6 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 77 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | n-Track S.r.l. | TimperLabs LLC |
Customer experience
n
KeyTuner
User reviews
n
From 3.2K App Store ratingsWhat we love
- ⭐ Accurate tuning
- 🎨 Useful visual feedback
- 📊 Detailed frequency analysis
- 🎶 Works well for various instruments
- 🆓 Reliable free version
Room to improve
- 💰 Intrusive ads in free version
- 🔒 Paywall for advanced features
- 🔋 High battery consumption
- 🐛 Occasional bugs and crashes
KeyTuner
From 1.8K App Store ratingsWhat we love
- 🚀 Accurate and precise tuning
- 👍 Simple and user-friendly interface
- 🎨 Supports a variety of instruments
- 💰 Free with no ads
- 🔍 Detailed frequency and cents display
Room to improve
- 🐛 Occasional issues with note recognition
- 🔊 Microphone sensitivity can be inconsistent
- 🔢 Limited support for alternate tunings/temperaments
Bugs and requests
n
Reported bugs
3 issues- Inaccurate note detection
- Freezing during use
- Compatibility issues with certain instruments
Requested features
3 requests- Option to remove ads
- Improved compatibility with lower-end devices
- More customization options
KeyTuner
Reported bugs
2 issues- App crashes or freezes on some devices
- Microphone input not working correctly
Requested features
3 requests- Ability to save custom tuning profiles
- Metronome or rhythm generator function
- Support for more advanced instrument types
In-app purchases
n
- pro features and remove ads$12.99
KeyTuner
No in-app purchases








