A button label has been modified to make it easier to understand.

1. Fixed crashes when viewing charts. 2. The optional mode for Detect Pitch and Detect Interval with an accuracy of 0.1 cents has been added.

1. Fixed the error that the volume adjustment in Constant Detection page cannot be displayed. 2. Added pop-up prompt for in-app purchase.

1. Fixed a crash in Constant Detection. 2. The function of checking the constant detection results is added. 3. Fixed the error of displaying the notation '1' as' C ' in Detect Interval view. 4. The use of outdated c code is abandoned, which improves the security of the app.

1. You can now review a chart of constant detection results. 2. Fixed a bug that could cause a crash.

The High Accuracy detection function of 0.01 cents is no longer provided (reserved for purchased users).

1. Constant detection mode is added, which can detect male and female singing. 2. Fixed an error that could not be displayed correctly when selecting the key signature on the detection page.

Fixed a bug that caused a crash.

1. Fixed a bug that caused a crash. 2. Language selection is added in the initial page to provide more convenience.

The stability of common accuracy detection is improved. Fixed the code error that the high accuracy switch is not in the correct state when the common accuracy is set. Fixed the title error of the in-app purchase page.

Added support for Bluetooth microphone.

1. Add the movable do system and key signature settings to improve the adaptability of the app. 2. In the interval detection, the diminished 5th interval is added. 3. Add app support for new iOS system and improve stability.

The description of detection accuracy is modified to facilitate users to understand and use the functions of the APP more accurately.

When there is no in-app purchase, all notes and intervals can be detected with low accuracy within 7 days, so that users can fully experience the performance of the app.

Fix the random system crash when detecting.

Fixed a crash bug during detection introduced in the previous version.

Improved the instructions in the APP for users to understand accurately.

1. Users can purchase the "Low Precision Detection" function at a lower cost, which will adapt to non music research professionals. 2. Modified the code error that the purchase currency symbol may be incorrect after the device is moved to different countries or regions.

1. Low precision detection mode is added to improve the applicability. 2. Modified the possible inaccurate error of interval detection automatic recognition.

Fixed the parameter setting error of low reliability in the tuning of Flue Pipe, Organ(Reed Pipe), Organ(Flue Pipe) and Reed Pipe instrument sound types.

1. Fixed the flash back error when app wakes up from the detection page. 2. Microphone selection and volume adjustment are added to better pick up sound.

1. Fixed the error that the app could not detect normally after upgrading to iOS 13. 2. The error that the main microphone is not used for pickup is corrected.

1. Added interval detection function. 2. Added male and female voice types.

Modify a code error that causes occasional crashes.

Fixed a bug that might cause App crash when displaying the continuous detection deviation chart.