Legal Disclaimer & Terms of Use (Revised)

1. Advertising & Free Version (AdMob)

"Lung Fitness Blow Test" is entirely free and supported by advertising. We use Google AdMob to display advertisements within the App.

• Ad Serving: We use Google AdMob to display advertisements within the App.
• Data Usage: Third-party ad providers may collect and use pseudonymous data (such as your device's advertising ID) to serve relevant ads.
• Opt-Out: Users can manage ad personalization settings through their device's Google account settings or system privacy controls.

2. Airflow Detection & Microphone Privacy

The App utilizes your device's microphone to detect the audio frequency and amplitude generated by blowing actions to calculate duration and pressure.

• Blowing Detection Feature: The App utilizes your device's microphone to detect the audio frequency and amplitude generated by blowing actions to calculate duration and pressure.
• Local Processing Only: To prioritize your privacy, all audio amplitude processing is performed instantly and locally on your device.
• No Audio Recording: The App does not record, stream, save, or transmit any audio data, voice, or private conversations to our servers or any third parties.
• User Control: Microphone access is mandatory only for the blowing feature to function and can be revoked at any time via your device's system settings.

3. Local Data Storage & Retention

All your daily blow test results, counts, calendar history, and monthly statistics are stored locally on your device.

• Local Storage: All your daily blow test results, counts, calendar history, and monthly statistics are stored locally on your device (e.g., SQLite/local storage).
• No Cloud Sync: We do not operate cloud servers for user data. Your progress remains strictly on-device.
• Retention: Local data remains on your device until you manually clear the app data or uninstall the App.
• Third-Party Services: Google Play and AdMob may process data as described in their respective privacy policies.

4. STRICT HEALTH & MEDICAL DISCLAIMER (CRITICAL)

"Lung Fitness Blow Test" is purely a fitness tracking and casual entertainment tool. It is NOT a medical device, diagnostic tool, or clinical spirometer.

• NOT A MEDICAL DEVICE: "Lung Fitness Blow Test" is purely a fitness tracking and casual entertainment tool. It is NOT a medical device, diagnostic tool, or clinical spirometer. It CANNOT be used to diagnose, prevent, monitor, or treat any respiratory diseases (such as Asthma, COPD, or Long-COVID complications).
• NO MEDICAL LIABILITY: The metrics provided (such as pressure decibels and duration seconds) are based on microphone acoustics and are NOT medically accurate. Never rely on this App for health assessments.
• USER SAFETY WARNING: Breathing exercises and forceful blowing can cause dizziness, lightheadedness, or hyperventilation. Stop using the App immediately if you feel faint or uncomfortable. If you have a history of respiratory or cardiovascular conditions, consult a qualified healthcare professional before use.