n vs APTuner
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
APTuner
This application provides highly accurate chromatic tuning for a wide range of instruments. It features a clear interface, customizable settings, and the ability to detect note deviations with precision.
- Automatic note and cent deviation detection
- Accurate to 1/1000 semitone
- High contrast, high visibility UI
- Instrument presets
- User selectable noise threshold
- Settable A4 frequency
- Historical temperaments
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Features: + Automatically detects the note and cent deviation for a wide variety of instruments + Accurate up to 1/1000 semitone (0.1 cent) + High contrast, high visibility user interface + Instrument presets + User selectable noise threshold + Settable A4 frequency + Frequency table + Select and edit historical temperaments
Screenshots
Verdict
The clearest difference is in-app purchases: APTuner at none against n's 1. APTuner also leads on ads (none vs shown) and review sentiment (100% vs 76%). n's advantage is update cadence (every 2 weeks vs every 3 months) and ratings volume (3.2K vs 6). On price and device support 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. APTuner asks for nothing beyond the download.
APTuner holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: n has 3.2K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 76% of n's written reviews are positive against 100% of APTuner's.
n ships an update every 2 weeks, APTuner every 3 months. The most recent releases landed on September 23, 2026 and August 20, 2026 respectively.
| Parameter | n | APTuner |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3.2K ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 76.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3.2K — better | 6 |
| Update frequency | Every 2 weeks — better | Every 3 months |
| 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 | 15.6 |
| Further details — not scored | ||
| Size | 77 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | n-Track S.r.l. | Joseph Broms |
Customer experience
n
APTuner
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
APTuner
Not enough reviews yet to summarise bugs or requests.
In-app purchases
n
- pro features and remove ads$12.99
APTuner
No in-app purchases








