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Contains adsIn-app purchases

About this app

The Whistle Sound is a multi-purpose safety tool designed to attract attention, provide audible or silent warnings, and prepare for emergencies in advance. It offers quick access to whistle, siren, Morse SOS, and silent vibration modes; displays help cards; and allows you to create your personal emergency plan on the device.

Alarm and Warning Tools

- Whistle, siren, Morse SOS, and silent vibration modes
- Continuous or intermittent sound pattern and automatic stop timer
- Full-screen HELP card and emergency phrase cards
- Screen flash and flashlight strobe on supported devices
- Debris/SOS mode, simple operation mode, and silent danger mode
- Low battery, keep screen on, and optional shake-to-start options

Emergency Preparedness

- Add emergency contact; Quick access to call, SMS, WhatsApp, and system sharing screens
- User-initiated location sharing, safety check timer, and help chain
- Personal emergency plan including health card, safe meeting point, and help language
- Preparedness score, preparedness check, drill, and local incident log
- Earthquake/rubble, lost, being tracked, inability to speak, child/elderly safety, night walk, travel, and camping scenarios
- Offline mini-guide and comprehensive post-earthquake tools
- Searchable emergency number directory for 177 countries and regions
- Multilingual help phrases and large help screens that can be shown to a nearby person
- Large font, high contrast, and color-friendly accessibility options

The safety flow in the preparedness tab can download publicly available short information cards without waiting for an app update. Previously downloaded content can be used offline.

Basic features and Pro

Basic alarm, SOS, help, preparedness, emergency number, and sharing tools are free with the first whistle. Optional one-time Pro purchase; Enables three additional whistle options, a user-activated fixed backlight, and ad-free use.

Privacy

Whistle Sound does not require an account. Emergency contacts, health cards, safe meeting points, settings, and event logs that you add manually are not uploaded to a developer server; they are stored on your device. Call, message, and share screens only open with your action.

In the free version, non-personalized ads may only be displayed in non-critical preparation and settings areas. No ads are displayed in active alarm, SOS, help card, location sharing, emergency call, or debris mode. No ad requests are made when Pro is activated. Detailed data processing information can be found in the Privacy Center and privacy policy within the app.

Important: Whistle Sound is not an earthquake detection or early warning system. It does not replace official emergency services, does not send automated notifications or messages, and does not guarantee rescue. In case of imminent and real danger, call the official emergency number of your country.