Guitar Tuner!2.4 - App Store
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Publisher Description
An easy-to-use accurate audio/visual tuner for your guitar.
Provides a simple interface to visually check whether the pitch for each string is low or high, and lets you "see" the pitch change as you wind/unwind the string tuning machines. Tuning has never been easier.
Shows exactly how many cents (1/100ths of a semitone) a note is out-of-tune.
- Extremely accurate - within 1 cent (1/100th of a semitone) of each note with sub-second response time.
- Developed in Austin, Texas, the "Live Music Capital of the World".
- Use the standard tuning E-A-D-G-B-E or one of many alternate tunings: regular tunings such as Minor Third, special tunings such Drop D, open tunings such Open C, lower tunings, higher tunings.
- Adjust pitch incrementally from 400 to 480 Hz or up/down a half/full step from A440. (The International Organization for Standardization specifies the frequency for the note A in the treble stave as 440 Hz. ISO 16:1975).
- Tap to hear an accurate note if tuning by ear instead of using visual tuning.
- Enable/disable Auto-string-detect (not recommended for noisy environments).
Version History Bug fix for temporary freezing when note played on iOS 11 2.4 12/11/2017 iOS 10 support and bug fixes. 2.3 11/04/2016 Updates for iOS 10. 2.2 11/03/2016 Message for disabled microphone.
I love your feedback. Please send any suggestions or questions to peterdeelstraapps+guitartuner@gmail.com 2.1 11/07/2013 - Update for iOS 7
- Additional tuners
- Remembers settings
- iPhone 5/5S/5C screen size support
- Faster performance 2.0 10/23/2013 Default Auto-String-Detect off 1.6 08/09/2011 iPad support (all orientations)
Auto string detect
Added 3 lower tunings
Faster response time 1.5 07/19/2011 - Display numeric accuracy of current measured note in "cents" (1/100th of a semitone)
- Improved accuracy from within 5 cents to within 1 cent for each note
- Added pitch values for adjusting a half or full step up or down 1.4 06/17/2011 Spelling correction.
Rendering change. 1.3 03/07/2011 Adjust Pitch from 400 to 480 Hz 1.2 12/18/2010 New icons, minor algorithm change 1.1 11/18/2010 1 11/02/2010
About Guitar Tuner!
The company that develops Guitar Tuner! is Peter Deelstra. The latest version released by its developer is 2.4.
To install Guitar Tuner! on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-15 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Guitar Tuner! as malware if the download link is broken.
How to install Guitar Tuner! on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Guitar Tuner! is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Guitar Tuner! is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 2.4
posted on 2026-10-15
Version History Bug fix for temporary freezing when note played on iOS 11 2.4 12/11/2017 iOS 10 support and bug fixes. 2.3 11/04/2016 Updates for iOS 10. 2.2 11/03/2016 Message for disabled microphone.
I love your feedback. Please send any suggestions or questions to peterdeelstraapps+guitartuner@gmail.com 2.1 11/07/2013 - Update for iOS 7
- Additional tuners
- Remembers settings
- iPhone 5/5S/5C screen size support
- Faster performance 2.0 10/23/2013 Default Auto-String-Detect off 1.6 08/09/2011 iPad support (all orientations)
Auto string detect
Added 3 lower tunings
Faster response time 1.5 07/19/2011 - Display numeric accuracy of current measured note in "cents" (1/100th of a semitone)
- Improved accuracy from within 5 cents to within 1 cent for each note
- Added pitch values for adjusting a half or full step up or down 1.4 06/17/2011 Spelling correction.
Rendering change. 1.3 03/07/2011 Adjust Pitch from 400 to 480 Hz 1.2 12/18/2010 New icons, minor algorithm change 1.1 11/18/2010 1 11/02/2010
version 2.4
posted on 2026-09-03
Version History This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
Bug fix for temporary freezing when note played on iOS 11 2.4 12/11/2017 iOS 10 support and bug fixes. 2.3 11/04/2016 Updates for iOS 10. 2.2 11/03/2016 Message for disabled microphone.
I love your feedback. Please send any suggestions or questions to peterdeelstraapps+guitartuner@gmail.com 2.1 11/07/2013 - Update for iOS 7
- Additional tuners
- Remembers settings
- iPhone 5/5S/5C screen size support
- Faster performance 2.0 10/23/2013 Default Auto-String-Detect off 1.6 08/09/2011 iPad support (all orientations)
Auto string detect
Added 3 lower tunings
Faster response time 1.5 07/19/2011 - Display numeric accuracy of current measured note in "cents" (1/100th of a semitone)
- Improved accuracy from within 5 cents to within 1 cent for each note
- Added pitch values for adjusting a half or full step up or down 1.4 06/17/2011 Spelling correction.
Rendering change. 1.3 03/07/2011 Adjust Pitch from 400 to 480 Hz 1.2 12/18/2010 New icons, minor algorithm change 1.1 11/18/2010 1 11/02/2010
version 2.4
posted on 2026-08-21
Version History This update from Apple will improve the functionality of this app. No new features are included.
Bug fix for temporary freezing when note played on iOS 11 2.4 12/11/2017 iOS 10 support and bug fixes. 2.3 11/04/2016 Updates for iOS 10. 2.2 11/03/2016 Message for disabled microphone.
I love your feedback. Please send any suggestions or questions to peterdeelstraapps+guitartuner@gmail.com 2.1 11/07/2013 - Update for iOS 7
- Additional tuners
- Remembers settings
- iPhone 5/5S/5C screen size support
- Faster performance 2.0 10/23/2013 Default Auto-String-Detect off 1.6 08/09/2011 iPad support (all orientations)
Auto string detect
Added 3 lower tunings
Faster response time 1.5 07/19/2011 - Display numeric accuracy of current measured note in "cents" (1/100th of a semitone)
- Improved accuracy from within 5 cents to within 1 cent for each note
- Added pitch values for adjusting a half or full step up or down 1.4 06/17/2011 Spelling correction.
Rendering change. 1.3 03/07/2011 Adjust Pitch from 400 to 480 Hz 1.2 12/18/2010 New icons, minor algorithm change 1.1 11/18/2010 1 11/02/2010
version 2.4
posted on 2017-12-11
This app has been updated by Apple to display the Apple Watch app icon.
Bug fix for temporary freezing when note played on iOS 11
version 2.4
posted on 2017-12-11
Dec 11, 2017 Version 2.4
This app has been updated by Apple to display the Apple Watch app icon.
Bug fix for temporary freezing when note played on iOS 11
version 2.4
posted on 2017-12-11
Dec 11, 2017 Version 2.4
This app has been updated by Apple to use the latest Apple signing certificate.
Bug fix for temporary freezing when note played on iOS 11
version 2.4
posted on 2017-12-11
Dec 11, 2017 Version 2.4
Bug fix for temporary freezing when note played on iOS 11
version 2.1
posted on 2010-11-02
version 2.4
posted on 1970-01-01
2017年12月11日 Version 2.4
Bug fix for temporary freezing when note played on iOS 11
version 2.4
posted on 1970-01-01
11. Dez. 2017 Version 2.4
Bug fix for temporary freezing when note played on iOS 11
Disclaimer
Official App Store Link
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