- Improved internal processing and performance.
- Requires iOS 26.2 or later.

- Improved internal processing and performance.
- Requires iOS 18.7 or later.

- Added Average display function.
- Changed UI design.
- Requires iOS 18.2 or later.

- Renewed UI design.
- Requires iOS 18.1 or later.

- Improved internal processing and performance.
- Requires iOS 16.6 or later.

- Improved internal processing and performance.
- Renewed UI design.
- Requires iOS 15.0 or later.

- Added a new function to change the slope in the FFT graph.
- Improved internal processing and performance.
- Changed UI design.
- Requires iOS15.0 or later.

- Added the peak hold function for FFT analysis.
- Minor improvements.
- Requires iOS12.5 or later.

- Minor bug fixes.
- Modified UI design.
- Requires iOS12.4 or later.

- Improved UI.
- Requires iOS12.1 or later.

- Minor bug fixes.
- Requires iOS11.3 or later.

- Fixed some bugs.

- Minor improvements in code.
- Requires iOS11.2 or later.

- Added 1/3 octave band calibration function for each octave band.
- Update UI Design.
- Requires iOS11.2 or later.
- Optimize the code.

- Requires iOS9.2 or later.
- Code optimization.

- Improved a part of code
- Added the display response control function.
- Requires iOS8.4 or later

- Added Peak HOLD function at 1/3OCT mode.
- Added Snapshot of Measurement display.
- Code optimization.
- Changed UI design.
- Support for iOS8.1

- Improved low frequency response
- Added gain calibration function

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- Major Update! Changed UI design and App name.
- Add Function of Touch-Scroll to adjust visible amplitude ranges.
- Refactoring
- Correspond to iOS7.1

- Updated for iOS7
- Adjustment of frequency
- Improvement of sensitivity
- Change of screen design