Ultramo
Offline Ultrasonic Repellent
Only for iPhone
$0.99 · Designed for iPhone. Not verified for macOS.
iPhone
Offline high-frequency mosquito repellent,no internet.Three modes,screen-lock background playback,suitable indoor & outdoor
Ultramo – Fully Offline High-Frequency Sound Mosquito Repellent Tool
Runs entirely offline with no account login or network data transmission, ensuring higher privacy as all operations are processed locally;
Three variable-frequency sound modes: Gentle Mode, Standard Mode and Powerful Mode, freely switch according to your needs;
Supports audio background playback, continuously emitting sound waves to repel mosquitoes even when your phone screen is locked;
Generates high-frequency ultrasonic sound via the device’s built-in speaker;
Ultra-simple one-tap start & stop operation, ideal for home, bedroom, camping and other indoor and outdoor scenarios. Disclaimer: This app only produces high-frequency sound waves and does not make any medical efficacy claims regarding mosquito repellent. Actual performance differs depending on device hardware, surroundings and mosquito species.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 丽 杨, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 丽 杨
- Size
- 2.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 LI YANG
