AlertCatcher - Smart Guardian

Home & Travel Edge-AI Monitor

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

Secure your room with offline edge-AI. Turn your device into an automated sound and motion sentry with real-time pairing and encrypted remote alerts. No account required. Repurpose your iOS device into an intelligent, 100% private security monitor. Keep a silent, edge-AI guard over your home, hotel room, Airbnb, or office, and receive instant remote alerts anywhere. AlertCatcher uses a secure dual-device architecture to protect your space without sacrificing personal privacy: 1. The GUARDIAN device stays in the room, actively listening for acoustic anomalies and monitoring motion. 2. The RECEIVER device stays with you, receiving instant push alerts and displaying real-time updates. HOW IT WORKS: 1. Choose Roles: Set your monitor device to Guardian Mode and your carry-along phone to Receiver Mode. 2. Pair Securely: Pair devices instantly using an anonymous Link Code. No email signups or accounts required. Tap "Approve Link" on your Guardian to authorize. 3. Arm & Monitor: Toggle Sound or Motion inputs, tap Start, then tap the Moon icon to enter Blackout Mode. You are now protected! KEY FEATURES: • Edge-AI Sound Classifier: Processes audio 100% locally. Listens for glass breaking, door knocks, alarms, speech, baby crying, or human distress. • Motion Sentry: Analyzes camera feeds locally to detect movement. Automatically saves a 30-second local video clip and alerts the Receiver. • On-Demand Live Camera: Remotely view a secure 1Hz live feed of your room from your Receiver device. A flashing banner displays on the Guardian screen for privacy transparency. • Remote Arm, Disarm & Siren: Toggle the Guardian's state remotely or trigger a loud deterrent siren from your Receiver device. • Discreet Blackout Mode: Dims the Guardian screen to 0% brightness to keep the app active in the foreground while preventing screen burn-in and keeping the room dark. • Evidence Library & Timeline: Browse history with a visual 24h timeline. Tap any icon to play the closest local audio/video clip. Swipe to delete or share. • Interruption Recovery: Automatically pauses and resumes monitoring when phone calls or system alerts interrupt device audio hardware. ABSOLUTE PRIVACY PROMISE • 100% On-Device Processing: All acoustic classification and motion analysis are processed offline on your hardware. • Offline Evidence Storage: Recorded audio/video evidence clips are stored strictly in the Guardian's secure local sandbox and are never uploaded to any server. • Transient Live Streaming: The optional Live Sentry streaming feature uploads only a single frame at a time (approx. 1Hz) to your secure Firebase database. This frame is immediately overwritten and permanently deleted when the stream ends. • Zero Data Sharing: No raw media is ever shared, sold, or sent to third-party servers. LICENSE & 7-DAY FREE TRIAL Experience the power of AlertCatcher with a fully featured 7-day free trial: • 7-Day Free Trial: Unrestricted, full access to all features (Sound, Motion, Video Sentry, Live Streaming, Remote controls, and History) for your first 7 days. • Lifetime Premium Upgrade (One-Time Purchase): Required to continue using the app after the 7-day trial expires. Unlocks permanent, unlimited access with no recurring subscription fees. Disclaimer: AlertCatcher is a portable security utility. It is not a replacement for professional home security systems or designated life-safety fire/smoke detectors. Please use responsibly and in accordance with local regulations.

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The developer, Golden Sphere Solutions LLC, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • User Content
    • Identifiers
    • Other Data

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

Accessibility

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

Information

Seller
  • Golden Sphere Solutions LLC
Size
  • 16.9 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
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Golden Sphere Solutions LLC
  • Developer Website
  • Privacy Policy

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