- Updated for Android 15 (SDK 35).
- Optimised the audio sampling.

This update from Apple will improve the functionality of this app. No new features are included.

-compatible with most recent iOS versions and devices

-support of iOS 8 and iPhone 6 (and Plus)
-bode-plot view
-better sharing-options for spectrographs
-better frequency legend
-settings are remembered

support of iOS 6 and iPhone 5

bug-fix: frequency-ruler displays correct frequencies on the new iPad

- smoother and more robust spectrogram-display
- support of the new iPad's retina-display

-larger touchable area of play/pause- and options-button
-frequency-legend rendered into pictures saved to photo-library, if enabled

2.1.1
-bugfix: correct frequency display
-bugfix: smoother scrolling

2.1:
-actions-button replaced screen touch for accessing actions
-touching on screen reveals frequency underneath finger

-faster changing of settings

-Spectrogram Pro is now an Universal App! (runs natively on both iPhone and iPad)
-The startup configuration can be configured in the Settings-app
-improved algorithms