Comparison

Pitch Checker vs Note a note

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

Head to head
About

Pitch Checker

This app analyzes real-time audio to display musical notes, pitch, octave, frequency, and waveform. It helps measure vocal range, practice absolute pitch, detect song notes, and includes a metronome for rhythm practice. Adjust settings for notation, reference pitch, and sensitivity.

Highlights
  • Real-time audio analysis
  • Vocal range measurement
  • Pitch detection
  • Frequency and waveform display
  • Metronome with sound/vibration
  • Adjustable microphone sensitivity
  • Customizable notation settings
Features
Read full description

The app analyzes real-time audio from your microphone and displays musical note, pitch, octave, frequency, and waveform information. ■ Measure and Track Your Vocal Range Tap “Measure vocal range” in the Range tab to measure your highest and lowest notes. Hold the same note for one second to register it, then save once both notes have been measured. View your saved measurements in the history graph and look back at how your vocal range changes over time. It also includes a Metronome feature (Beta), allowing you to set the tempo and practice with sound and vibration cues. ■ Usage Examples - Measure vocal range - Practice absolute pitch - Detect the musical notes of a song (pitch detection) - Vocal exercises - Karaoke practice - Improve pitch accuracy - Measure frequency - Voice training - Basic instrument tuning (use it as a tuner) - Do, Re, Mi note detection - Rhythm practice using the metronome You can pause the analysis with a tap, allowing you to review the results at your own pace. The display also supports notations such as low A, mid2 A, hihi A, etc. ■ How to Use Simply launch the app, and it will automatically measure the pitch of sounds captured by the microphone — whether voice or instruments. To avoid picking up small sounds and background noise, slide the “Microphone Sensitivity” bar in the upper-left corner upward. The metronome can be used by simply setting your desired tempo. ■ Settings Tap the gear icon in the top-right corner to access the following settings: - Toggle between sharp and flat notation - Change the large center display notation (Do, Re, Mi / C, D, E, F, G, A, B) - Set the reference pitch - Adjust pitch detection speed - Set the metronome tempo ■ FAQ Q. I want to measure my vocal range. A. Tap “Measure vocal range” in the Range tab to measure and save your highest and lowest notes. Review your saved results in the history graph. Extended notations such as hihi A and lowlow A are also supported. Q. Pitch is displayed even when it’s quiet. A. Even in very quiet environments, tiny background noise may be detected. To prevent this, slide the “Microphone Sensitivity” bar upward to ignore softer sounds. Q. I want to use it as a tuner. A. No special settings are required. However, switching the large center display from "Do, Re, Mi" to "C, D, E, F, G, A, B" may be more convenient. Tap the gear icon and change the “Large Display Notation” setting. ■ Other Information Permissions: - Microphone: Used to analyze audio input - Siri & Search, Cellular Data: Used for AdMob advertisements Terms of use can be found here: https://pitchchecker.app/terms/ For bug reports or inquiries about the app, use the contact form on our official website: https://pitchchecker.app/en/ Feel free to use this app on media platforms such as TV.

About

Note a note

Features
Read full description

The Perfect Tool for Vocalists! 'Note a note' app helps you accurately identify notes, sound frequency, and even deviation in cents using the built-in microphone. Just sing, and the app instantly displays your note on a musical staff! The ideal tool for those learning to sing and wanting to improve their musical ear. Take a step toward vocal perfection with our app!

Screenshots

Pitch Checker4 screens
Note a note2 screens

Verdict

The call

The clearest difference is in-app purchases: Note a note at none against Pitch Checker's 2. Note a note also leads on ads (none vs shown) and iOS requirement (13.4 vs 17.0). Pitch Checker's advantage is update cadence (every 5 days vs fortnightly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Pitch Checker sells 2 in-app purchases, starting at $3.99 per month. Note a note asks for nothing beyond the download.

UpkeepUpdate frequency

Pitch Checker ships an update every 5 days, Note a note fortnightly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Pitch Checker versus Note a note: the parameters behind the verdict, then further details
ParameterPitch CheckerNote a note
PriceFreeFree
Rating4.6 (617 ratings) — better—
Positive reviews51.8% of reviews—
Number of ratings617 — better—
Update frequencyEvery 5 days — betterFortnightly
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.013.4 — better
Further details — not scored
Size56 MB23 MB
Age rating4+4+
DeveloperShigeki MatsunakaChirill Popovschii

Bugs and requests

Pitch Checker

Reported bugs

22 issues
  • Banner of naked pictures across the top
  • Full of scam ads now
  • 音程を測定できなくなった (Pitch measurement stopped working)
  • マイクがあまり反応しなくなってしまった (Microphone not responding well)
  • Penis Adverts - not appropriate
Show 17 more
  • When it works most of the time it doesn’t
  • マイクの設定を有効にするのに時間がかかった (Took time to enable microphone settings)
  • アプリが使用できない (App cannot be used)
  • Often doesn't show pitch despite picking up audio
  • 測れる音域について (About the measurable pitch range)
  • 使えない (Cannot be used)
  • マイク感度を高くするとノイズに弱い (Weak against noise when microphone sensitivity is high)
  • This App has such a great microphone even with my door closed it can hear from downstairs!
  • Doesn’t pitch vocal fry
  • Doesn’t work at all
  • tracks you
  • App works well but can’t change language
  • Doesn’t work
  • アイディア最高!ピッチのok判定は甘すぎかも (Idea is great! OK judgment for pitch might be too lenient)
  • ピアノを弾いた時に弾いた音より1オクターブ上の音で表示されてしまいます (When playing piano, it displays one octave higher than the played note)
  • ファ#が表示されない (F# is not displayed)
  • ファ#の#表示 (F# sharp display)

Requested features

10 requests
  • Display highest recorded note
  • Ability to control measurement start time
  • Recording of measured sounds
  • Support for movable do (solfege)
  • Option to change key for solfege
Show 5 more
  • Adjustable OK判定 range
  • Support for wind instruments
  • Add more free features
  • Option to select vocal register
  • Change language to English

Note a note

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Pitch Checker

Subscriptions2
  • Ad Hiding Plan+Graph Function$3.991 Month
  • Ad Hiding Plan+Graph Function$39.991 Year
None

Note a note

No in-app purchases

Questions

Is Pitch Checker free?
Pitch Checker is free to download, with in-app purchases available.
Is Note a note free?
Note a note is free to download, with no in-app purchases.
Do Pitch Checker or Note a note have ads?
Pitch Checker shows ads; Note a note does not.
Which is updated more often, Pitch Checker or Note a note?
Pitch Checker ships an update every 5 days, and Note a note fortnightly. Most recently, Pitch Checker was updated on October 29, 2026 and Note a note on October 25, 2026.

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