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inTuna A440

By HotPaw Productions

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HotPaw inTuna A440 is a Free strobe tuner for just one musical pitch, Concert A, commonly 440 Hz, using the microphone on your iPhone for sound input. Many professional musicians prefer strobe tuners because they are faster and more precise, and work better when there is background noise, compared with needle indicator tuners.

The concert A reference pitch used by inTuna A440 is adjustable by plus/minus 10 Hz.

Also by HotPaw Productions in the App store Music category:

inTuna - Guitar Tuner, a strobe tuner optimized for tuning 6 string guitars.

Sing-inTuna, visualize how well you can sing in tune.

and iAutoharp, easy and fun to play.

What's New in Version 1.6.0

Also updated: the HotPaw Music Spectrograph app, a great way to visualize music and see if it's in tune.

New in A440 version 1.6.0 :
- Added support for iOS 6 and the iPhone 5 display size.
- Frequency readout now stays visible a bit longer.
- Added a switch to view the original waterfall stobe (some users prefer the legacy rectangular strobe window over the new eliptical strobe).
- Added an option to revert to single note 440Hz-only tuning, available after In-App-Purchase of the full Chromatic tuning mode.
- Other minor bug fixes.

iPhone Screenshot

iPhone Screenshot 1

Customer Reviews


If you want a very small tuning app, and all you need is an A, with no frills, this is the app for you.

Not good

Only tunes A 440, no other notes.

inTuna A440
View In iTunes
  • Free
  • Category: Music
  • Updated:
  • Version: 1.6.0
  • Size: 0.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 4.3 or later. Compatible with iPhone, iPad, and iPod touch. This app is optimized for iPhone 5.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions:

Top In-App Purchases

  1. Chromatic strobe tuner upgrade$4.99