Comparison

n vs Frequency Meter PRO

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • High precision tuning
  • Spectrum Analyzer
  • Instrument selection
  • Tune Fork reference tone
  • Needle tuner
  • Adjustable sensitivity and precision
Features
Read full description

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

About

Frequency Meter PRO

Analyze audio frequencies in real-time using your device's microphone. Visualize audio levels, noise, and frequency ranges with a spectrum analyzer and oscilloscope. Export data for further analysis.

Highlights
  • Real-time audio scanning
  • Spectrum analyzer visualization
  • Frequency oscilloscope
  • Adjustable noise threshold
  • Customizable frequency range
  • Export data to CSV
Features
Read full description

Frequency Meter PRO is a comprehensive tool for audio frequency diagnostics. Includes REAL TIME scanning of audio signal from internal or external microphone. *** OUTPUT *** Visualization is done on real like device that shows: - Audio level - Noise Level - Frequency range - Current frequency - Frequency oscilloscope - Spectrum analyzer *** ACCURACY *** Application is calibrated with real tone generator. Working range is around 15 - 22500 Hz, and accuracy around +/- 0.5 %. *** NOISE LIMIT *** You can easily set a limit that removes noise treshold with included trackbar. *** RANGE SELECTION *** Choose minimum and maximum frequency you want to scan. *** EXPORT *** You can export output chart to comma-separated file that you can later analyze with MS Excel or other table processor. Application shares document folder in iTunes. *** SUPPORT*** Please don't hesitate to write us for details or questions: lubomir.havran@gmail.com

Screenshots

n4 screens
Frequency Meter PRO3 screens

Verdict

The call

The clearest difference is review sentiment: n at 76% against Frequency Meter PRO's 15%. n also leads on price (Free vs $2.99) and rating (4.7 vs 1.8). Frequency Meter PRO's advantage is in-app purchases (none vs 1) and ads (none vs shown). On 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

CostPrice · In-app purchases · Ads · Monetization

n is free to download; Frequency Meter PRO costs $2.99 up front. n sells 1 one-off in-app purchase. Frequency Meter PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

n holds the better App Store score, 4.7 against 1.8. That said, the two scores are not equally well evidenced: n has 3.2K ratings behind it against 30, 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 15% of Frequency Meter PRO's.

UpkeepUpdate frequency

n ships an update every 2 weeks, Frequency Meter PRO every 4 months. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard9 real differences · 1 level
n versus Frequency Meter PRO: the parameters behind the verdict, then further details
ParameternFrequency Meter PRO
PriceFree — better$2.99
Rating4.7 (3.2K ratings) — better1.8 (30 ratings)
Positive reviews76.0% of reviews — better14.7% of reviews
Number of ratings3.2K — better30
Update frequencyEvery 2 weeks — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.08.0 — better
Further details — not scored
Size77 MB3 MB
Age rating4+4+
Developern-Track S.r.l.Lubomir Havran BINARTS

Customer experience

n

All ratings3,166 ratings
Positive94.1%
Neutral2.6%
Negative3.3%
Written reviews416 reviews
Positive76.0%
Neutral4.6%
Negative19.5%

Frequency Meter PRO

All ratings30 ratings
Positive13.3%
Neutral10.0%
Negative76.7%
Written reviews75 reviews
Positive14.7%
Neutral6.7%
Negative78.7%

User reviews

n

From 3.2K App Store ratings

What 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

Frequency Meter PRO

From 30 App Store ratings

What we love

  • ✨ Identifies frequency quickly
  • 💡 Can filter sound frequencies
  • 💡 Detects harmonics
  • 💡 Useful for ultrasonic devices
  • 💡 Can be used to tune instruments

Room to improve

  • ❌ Inaccurate readings
  • ❌ Not a reliable frequency meter
  • ❌ Fake, toy, not a frequency meter
  • ❌ Useless for tuning
  • ❌ Waste of money

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

Frequency Meter PRO

Reported bugs

25 issues
  • Sticks on a reading
  • Below C4 indicates wrong notes
  • Frequency range indicated when NOISE indicator is ON
  • Fails to change output when tone changes
  • Works only if shut down and restarted
Show 20 more
  • App crashes on open
  • App worked only once, now nothing happens
  • Crashes ever since the update
  • Crashing at the push of a button
  • Meter freezes
  • Locks up after 3-5 seconds
  • Buttons don't work
  • App closes when buttons are pressed
  • Cannot download
  • Ne fonctionne pas sur iPad mini, pas d accès au micro
  • Threshold sliders don't work as expected
  • App doesn't read frequency and gives out odd numbers
  • Barely works
  • Crashes frequently
  • Doesn't work on anything but a pure sine wave
  • Fails to work on current iOS version
  • Freezes every time I use it
  • Does not work at all
  • Random numbers displayed
  • Sometimes determines frequency well, other times completely wrong

Requested features

15 requests
  • Include a short/simple manual
  • Explain how to find CSV file in iTunes
  • Update with accuracy fix
  • Allow measurement of frequencies above 20kHz
  • Add help function for operation
Show 10 more
  • Improve display readability
  • Add option to filter background noise
  • Allow selection of recording intervals
  • Add real-time display of all main frequencies
  • Allow filtering of frequencies in a certain range
  • Include instructions in updates
  • Increase size of data presentation screen
  • Support for iPhone 5 resolution
  • More control over frequency filtering
  • Dark mode option

In-app purchases

1 purchases

n

One-time1
  • pro features and remove ads$12.99
None

Frequency Meter PRO

No in-app purchases

Questions

Is n free?
n is free to download, with in-app purchases available.
Is Frequency Meter PRO free?
Frequency Meter PRO costs $2.99, with no in-app purchases.
Which has better reviews, n or Frequency Meter PRO?
n is rated higher. n averages 4.7 out of 5 from 3.2K ratings, while Frequency Meter PRO averages 1.8 from 30 ratings.
Do n or Frequency Meter PRO have ads?
n shows ads; Frequency Meter PRO does not.
Which is updated more often, n or Frequency Meter PRO?
n ships an update every 2 weeks, and Frequency Meter PRO every 4 months. Most recently, n was updated on September 23, 2026 and Frequency Meter PRO on September 24, 2026.

Other comparisons