# A–440: Pro Tuner Tuning Fork — for musicians with ears

> Simple, adjustable frequency tone generator for musical tuning. (iPhone/iPad app by Paul Richardson.)

- Source: https://appshunter.io/ios/app/a440-pro-tuner-tuning-fork/id335593282 (this page in markdown: same URL + `.md`)
- Developer: [Paul Richardson](https://appshunter.io/developer/335593286)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 4.40/5 from 184 App Store ratings · 22 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.5 · 4 MB
- Languages: American English, German (Germany), European Spanish
- Released: 2010-10-23
- Data updated: 2026-09-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/a440-pro-tuner-tuning-fork/id335593282/reviews.md

## What is A?

A–440: Pro Tuner Tuning Fork puts an A in your ear. The rest is up to you.

One tap is all it takes.

A–440: Pro Tuner Tuning Fork gives you

- ease of use
- confidence
- reliability
- flexibility
- customization
- Siri integration

"If you know how to tune your instrument, this should be all you need."

A 14-day Trial is available. It is activated at no-cost and obligation-free. After the trial expires the sounding of an A is disabled until a license is purchased.

Download A–440: Pro Tuner Tuning Fork now and experience the ease and simplicity of tuning.

## Key features

- Single-tap tone generation
- Adjustable frequency (435–445 Hz)
- Siri Shortcut integration
- Home Screen and widget shortcuts
- iPad Slide Over compatibility

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| A–440 Premium | $4.99 | one-time |
| A–440 Standard | $2.99 | one-time |
| Upgrade to A–440 Premium | $2.99 | one-time |
| 14-day Trial | Free | one-time |


## Recent user reviews (10 of 22)

All indexed reviews: https://appshunter.io/ios/app/a440-pro-tuner-tuning-fork/id335593282/reviews.md

### 5/5 — DDobler

*2026-04-16, version 2.5.12*

Works quite well

### 5/5 — The Lost Art Of Tuning By Ear

*2023-03-23*

Using tuner pedals for decades severely impaired my ability to tune by ear. But this great little app on my phone has brought it back up to snuff. Plus I now always have tuner in my pocket!

**Developer response:** Hallo VWorks user,
thanks for your feedback. It's great to hear that another pair of ears have been happily returned to service.

### 2/5 — Good for a while

*2023-03-06, version 2.5.7*

Stopped working, right in the middle of a church service when I needed it. Nice while it lasted.

### 3/5 — Developer email fails

*2022-11-24, version 2.5.5*

Developer email fails. Therefore there is no support for this app.

### 1/5 — Not actually free

*2021-05-25, version 2.5.5*

Stop doing this people

### 5/5 — Finally a tuner for real musicians

*2020-01-09, version 2.2*

This app is exactly what I’ve been looking for! No ugly sustained tone; no superfluous pitch selection or—worse yet—insulting frequency measurement. Just an adjustable A4 with a well-measured decay. Love it!

### 1/5 — thumbs down

*2019-03-22, version 2.1*

Much better apps available for free. They should not charge money for such cheap app.

### 1/5 — It’s bad

*2018-08-05, version 2.1*

It doesn’t work and needs to get a life

### 1/5 — Don't annoy me if I paid for your software

*2017-07-29, version 2.1*

I paid money for the app.  In return I'm harassed repeatedly to give a review.  If you want one here you go.

### 5/5 — Simple effective tuning

*2016-10-26, version 2.0*

A simple tuning fork. 
A 440. 
If you know how to tune your instrument, this should be all you need.

## Frequently asked questions about A

### What does the A–440 Tuning Fork app do?

This app generates a pure tone at a specific frequency, primarily used for tuning musical instruments. It offers a simple interface with a single tap to produce the sound and allows for adjustable frequencies.

### How can I access the tuning tone quickly?

The app allows you to set up Siri Shortcuts, which can be added to your Home Screen, Dock, or the Shortcuts Widget. This enables you to start and stop the tone without needing to open the app directly.

### Is the A–440 Tuning Fork app free to use?

The app offers a 14-day trial which is activated via a no-cost purchase in the App Store. After the trial, the app will be disabled until a license is purchased.

### What devices is this app compatible with?

The app is designed for mobile devices and is noted to be useful with iPad's Slide Over feature. It leverages Siri Shortcuts, indicating compatibility with iOS devices that support this functionality.

### Can I tune to frequencies other than A–440?

Yes, the frequency is adjustable within a range of 435–445 Hz. This allows you to tune to A–440 as well as other common tuning pitches like A–443.

## Version history (last 5 releases)

### 2.6.2 — 2026-07-16

NEW:
- Localization en-GB
- Haptic feedback
- Privacy manifest

### 2.6.1 — 2026-06-15

FIXED:
- mail subject for support request
- animation of frequency label
- Onboarding navigation

### 2.6 — 2026-05-20

- New: Onboarding
- New: FAQ
- New: App Shortcuts

### 2.5.12 — 2024-11-04

Fixed: Regression introduced in 2.5.11

### 2.5.11 — 2024-10-31

- Minor bug fixes

## Apps similar to A

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Metronome+](https://appshunter.io/ios/app/metronome-plus/id434136233) | 4.5 (1,199) | Free | Music |
| [Pitched Tuner - Tuning App](https://appshunter.io/ios/app/pitched-tuner-tuning-app/id1457541750) | 4.6 (5,144) | Free | Music |
| [Tuner T1](https://appshunter.io/ios/app/tuner-t1/id453056916) | 4.5 (10,205) | Free | Music |
| [Tuner & Metronome -Soundcorset](https://appshunter.io/ios/app/tuner-and-metronome-soundcorset/id918055824) | 4.2 (997) | Free | Music |
| [Tuner Lite by Piascore](https://appshunter.io/ios/app/tuner-lite-by-piascore/id635828559) | 4.5 (9,949) | Free | Music |
| [Metronome Tuner \| Practice+](https://appshunter.io/ios/app/metronome-tuner-practice-plus/id858142974) | 4.4 (2,812) | Free | Music |

## More apps by Paul Richardson

- [Shakespeare: The Sonnets](https://appshunter.io/ios/app/shakespeare-the-sonnets/id6772543417)

All apps by Paul Richardson: https://appshunter.io/developer/335593286

## Related topics

[a440](https://appshunter.io/ios/topics/a440) · [tuning fork tuner](https://appshunter.io/ios/topics/tuning-fork-tuner) · [a440 tuning fork](https://appshunter.io/ios/topics/a440-tuning-fork) · [tuning fork](https://appshunter.io/ios/topics/tuning-fork) · [diapason](https://appshunter.io/ios/topics/diapason) · [tuning pro](https://appshunter.io/ios/topics/tuning-pro) · [the tuning fork](https://appshunter.io/ios/topics/the-tuning-fork) · [tuning fork pro](https://appshunter.io/ios/topics/tuning-fork-pro) · [a440 tuner](https://appshunter.io/ios/topics/a440-tuner) · [audiquo tuning fork](https://appshunter.io/ios/topics/audiquo-tuning-fork) · [the tuning fork lite](https://appshunter.io/ios/topics/the-tuning-fork-lite) · [tdi tuning](https://appshunter.io/ios/topics/tdi-tuning) · [tuning fork for watch](https://appshunter.io/ios/topics/tuning-fork-for-watch)

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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 2026-09-04.*