- Added Favorites : save and replay your most-used sounds instantly.
- Added Scenarios : launch recommended sound sets by use case in one tap.
- Added New Sound Category : expanded category options for more environments.
- Added Background Playback : audio keeps playing when the app is in the background.
- Added Background Timer : timer continues in background and auto-stops playback at the end.
- Improved stability & UX : better handling for app state changes and audio interruptions.
- Policy update (v2.2+): legacy paid users are automatically unlocked for all IAP; new users after v2.2 can use the app for free.

- Major sound library upgrade: more ultrasonic and predator sounds added
- Better usability: clearer categories for easier browsing and switching
- Improved unlock flow: free starter sounds plus one-time purchase to unlock all
- Performance and stability improvements for smoother playback

Bug fixes and performance improvements.

1, New UI Design
2, Fix Some Bugs

1  Add back mouse scream of the old version . Some people tell me old sound more effect, so we have 2 mouse scream in our App now.
2  Fix some bugs

● Add longer and cleaner sound of Mouse Scream (30 minutes now)

● Background running mode
- App can run at background while home button is pressed or the display is locked. This mode will be interrupted by a phone call and resumed when the phone call disconnected.

● Add A Timer, when set the timer on, sound will stop automatically now.

● Add 11 Cat`s sound.

●Add Mosquito & rats repel mode (Ultrasonic Wave)
- your device will emit sound wave from 21kHz to 22kHz, targeting to repel some types of mosquito and rats. Ultrasound may only repel rats for short term, as rats will eventually learn that ultrasound does not harm them


●Energy saving mode (available at in-app purchase)
- sound waves will be emitted one by one with a pause in between. Can save you 50% battery usage



●Background running mode
- App can run at background while home button is pressed or the display is locked. This mode will be interrupted by a phone call and resumed when the phone call disconnected.

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1. Play the sounds in Background
2. As asked by many firends , We add time count down to this app. So it can stop at given time.
3. fixed some small bugs

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