CarlTune - Chromatic Tuner5.3.1 - App Store

This is a chromatic tuner that captures the sound coming into the microphone, analyzes it, and displays the pitch. It shows the frequency and octave of the analyzed pitch, and the difference (cent value) from the standard pitch at the same time, allowing you to know the current pitch more specifically and quickly. In addition, graphical interfaces such as analog clocks provide more intuitive and multi-dimensional information.
▶Main features:
● Colors : You can select almost any color.
● Notation : Supports US, Europe, Korea, Thailand, Japan, and India.
● Rotation : Supports landscape mode and portrait mode screen.
● Hit range : You can fine-tune by adjusting ±Cent value from the standard pitch.
● Tunings: Provides various instruments and custom tuning interfaces.
6 String Guitar (Standard, Standard D, Drop D, Double Drop D, EAEGBE, Open D, Open E, Open Dmaj7, Open Emaj7, Open D7, Open E7, Open D6, Open E6, Open D minor, Open E minor, Open G, Open A, Open Gmaj7, Open C, Open A minor, Dad Gad, Papa Papa), 4-string bass guitar, 6-string bass guitar, ukulele, violin, viola, cello, double bass, mandolin, mandola, Guitarelle
In addition, the default chromatic interface can be used for almost all instruments such as flute, kalimba, daegeum, gayageum, and vocal practice.
● Pitch pipe : Produces a mathematically accurately calculated frequency tone. Also, the piano keyboard interface and standard frequency values ​​can help you understand sounds and music.
● Visibility : You can adjust the graphic interface aspect ratio to fit the aspect ratio of the device screen.
● Transposition, concert pitch : You can change the most well-known tuning standard A4=440Hz. It also provides a transposition function for transposing instruments such as the clarinet, trumpet and saxophone.
● All features are free, including ads.
● You can remove ads by making in-app payment (paid purchase).

Version History updated age ratings 5.3.1 12/14/2025 Added clef setting
Improved UI
Fixed bug 5.3 01/08/2024 Added layout option
Fixed bug 5.2 12/28/2023 Added note gauge
Improved UI
fixed bug 5.1 12/14/2023 fixed crash 5.0.1 12/08/2023 1.Audio Processing Engine Replacement
2.PitchPipe Noise Reduction
3.PitchPipe Switching Options(Earpiece and Speaker)
4.Improved GUI
5.Bug Fixes 5.0 11/30/2023 Fixed crash 4.1.6 07/19/2021 - Fixed crash 4.1.5 06/25/2021 - Fixed crash
- Disabled recording on background 4.1.4 06/23/2021 - Fixed crash 4.1.3 06/22/2021 - Stopped working on background
- Added transposition menu
- Improved gui 4.1.2 06/20/2021 - Fixed crash issue
- Changed ui text 4.1.1 06/17/2021 - Fixed Indian notation
- Added pitch transpose
- Improved GUI 4.1 06/17/2021 - Fixed a crash when launching the app 4.0.2 06/08/2021 - Fixed crash on very high Hz
- Fixed some pixel on the note labels
- Removed rotate from menu
- Improved layout of pitch pipe 4.0.1 06/04/2021 - Replaced signal processing engine
- Improved gui/layout
- Improved color ui
- Added notations
- Improved pitch pipe ui
- Added sensitivity setting 4.0 06/02/2021 Fixed ui/gui for iOS 14 3.0.5 04/19/2021 fixed displaying error when app starting 3.0.4 09/02/2019 fixed octave on latin notation 3.0.3 07/25/2019 fix displaying 0Hz in tune 3.0.2 09/17/2018 fix not moving to app's rate page 3.0.1 09/15/2018 - enhance GUI
- enhance pitch detection
- support portrait and landscape
- support iPhoneX, iPad 3.0 09/13/2018 - bug fix
- change gui
- screenshots for AppStore 2.1.1 04/24/2015 - fix wrong screen layout on iOS7.1
- change gui 2.1 01/13/2015 1. enhanced GUI
2. enhanced pitch detection 2.0 11/21/2014