ChirpFinder: Smoke Alarm Beeps

Find CO Detector Chirps Nearby

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

That occasional chirp is easy to hear and frustratingly hard to locate. ChirpFinder helps you track down the smoke alarm or carbon monoxide detector making a repeating low-battery beep. HOW IT WORKS 1. Tap Start Listening. 2. Wait while ChirpFinder listens for short, repeating detector-like chirps. 3. Walk from room to room after a repeating chirp is confirmed. 4. Follow the relative signal-strength indicator as each matching chirp gets louder. The app moves through simple Far, Getting Closer, Close, and Very Close states. It also shows the latest chirp loudness, time since the previous chirp, confidence, and the number of matching sounds detected. BUILT FOR INTERMITTENT CHIRPS ChirpFinder does not announce a match after one random noise. It compares short high-frequency sounds and waits for similar chirps to repeat before confirming a likely sequence. This helps reduce matches from speech, music, appliance noise, keys, doors, and other household sounds. PRIVATE BY DESIGN Microphone audio is analyzed on your iPhone. Raw audio is never recorded, saved, or uploaded. There is no account, backend, or cloud audio processing. ONE-TIME PURCHASE Unlock ChirpFinder with one lifetime purchase. There is no subscription, recurring charge, trial, or automatic renewal. IMPORTANT SAFETY NOTE ChirpFinder only helps locate repeating detector sounds. It does not test whether a smoke or carbon monoxide alarm is working, verify alarm safety, or identify an emergency. Always follow the detector manufacturer’s instructions and applicable emergency guidance.

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Updated App Store screenshots.

The developer, Matas Klemenis, 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.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Matas Klemenis
    Size
    12.2 MB
    Category
    Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 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.
    Languages
    English and 43 more
    • English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    © 2026 ChirpFinder