# Note Freak

> Musical pitch and frequency reference app for musicians and engineers. (iPhone/iPad app by Kevlee Software LLC.)

- Source: https://appshunter.io/ios/app/note-freak/id562619437 (this page in markdown: same URL + `.md`)
- Developer: [Kevlee Software LLC](https://appshunter.io/developer/562619440)
- Category: Music, Reference
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 10.0 · 2 MB
- Languages: American English
- Released: 2012-10-26
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/note-freak/id562619437/reviews.md

## What is Note Freak?

Note Freak is a reference app designed for musicians and recording engineers. I displays musical pitches along with the associated frequency value for each pitch in hertz. Also, various musical instruments are associated with the hertz value.  The frequency spectrum is also split out into tabs allowing users quick and easy access for each spectrum.

## Key features

- Musical pitch display
- Frequency values in hertz
- Instrument associations
- Organized frequency spectrum tabs
- Reference for musicians

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/note-freak/id562619437/reviews.md

### 5/5 — A great reference sheet, all the power is sub-5kHz!

*2022-08-18*

So I shouldn’t be surprised that the infamous range 20Hz to 20kHz is way wider than the fundamentals.  I knew that.  Yet, this is a useful reminder, of just how important the upper range where the harmonics reside is, and that the Fundamental Frequency of notes on our musical scale, that well-known ‘standard’ instruments play, is nowhere near those giddy limits.  So, I just appreciate the listing, it actually made me search for the note frequencies elsewhere, to check it - surely for example, C4 the infamous ‘middle C’ is not wallowing down there at 261.63Hz?  But it is, I wiki-checked it!

### 5/5 — Nice app

*2015-07-06*

Helps with work

## Frequently asked questions about Note Freak

### What is Note Freak?

Note Freak is a reference application that displays musical pitches and their associated frequency values in hertz. It also links these frequencies to various musical instruments and organizes the frequency spectrum into tabs for easy access.

### Who is Note Freak for?

This app is designed for musicians and recording engineers who need a quick reference for musical pitches and their corresponding frequencies. It can also be useful for students of music theory.

### Is Note Freak free to use?

Yes, Note Freak is available for free. It does not have any in-app purchases or advertisements, making it a completely free utility for users.

### What devices does Note Freak support?

Note Freak is available on iPhone, iPad, and iPod touch devices. It is designed to function across the Apple ecosystem.

### How often is Note Freak updated?

The latest version of Note Freak is 2.1, which was released on September 10, 2018. While it has not been updated recently, it remains a stable reference tool.

### What is the age rating for Note Freak?

Note Freak has an age rating of 17+. This is likely due to the nature of reference applications that may be used by older students or professionals.

### Does Note Freak have ads?

No, Note Freak does not contain advertisements. The app is completely free and ad-free, providing an uninterrupted user experience.

### What is the user rating for Note Freak?

Note Freak has received an excellent rating of 5.0 stars from 4 user reviews. This indicates a high level of user satisfaction with the app's functionality.

## Version history (last 3 releases)

### 2.1 — 2018-09-10

Bug Fixes and removal of Ads.

### 2.0 — 2017-09-05

64-bit support. Support for various screen sizes.

### 1.0 — 2012-10-25

No release notes.

## Apps similar to Note Freak

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [Pitch On Stave](https://appshunter.io/ios/app/pitch-on-stave/id6474725877) | 5.0 (1) | $2.99 | Music |
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| [Note a note](https://appshunter.io/ios/app/note-a-note/id6667036962) | — | Free | Music |
| [Guitar Tuner by Frido](https://appshunter.io/ios/app/guitar-tuner-by-frido/id6743318764) | — | $1.99 | Music |
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## More apps by Kevlee Software LLC

- [Delay Calc](https://appshunter.io/ios/app/delay-calc/id562621643)

All apps by Kevlee Software LLC: https://appshunter.io/developer/562619440

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*