# AlertCatcher - Smart Guardian — Home & Travel Edge-AI Monitor

> Repurpose devices as private, edge-AI powered security monitors with remote alerts. (iPhone/iPad app by Golden Sphere Solutions LLC.)

- Source: https://appshunter.io/ios/app/alertcatcher-smart-guardian/id6789208022 (this page in markdown: same URL + `.md`)
- Developer: [Golden Sphere Solutions LLC](https://appshunter.io/developer/1895157724)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 16 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/alertcatcher-smart-guardian/id6789208022/reviews.md

## What is AlertCatcher?

Repurpose your iPad, iPhone into an intelligent, 100% private, portable 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.
. Enjoy flexible multi-device monitoring: control and track multiple Guardians from a single Receiver, or link multiple Receivers to a single Guardian for shared family alerts. 

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.

## Key features

- Edge-AI sound classification
- Local motion detection with video clips
- On-demand live camera feed
- Remote arm, disarm, and siren control
- Discreet blackout mode
- Evidence library with timeline
- Interruption recovery

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| AlertCatcher Premium | $9.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/alertcatcher-smart-guardian/id6789208022/reviews.md

### 5/5 — Amazing app

*2026-08-16*

I love the idea of this app but my spare devices aren’t iOS 17+ but this app is amazing.

### 5/5 — Great app

*2026-08-09*

Well made! Useful app for alerting me.

## Frequently asked questions about AlertCatcher

### What is AlertCatcher's privacy promise?

AlertCatcher processes all audio and motion analysis 100% on-device, ensuring absolute privacy. Evidence clips are stored locally and never uploaded to any servers, and live streaming is transient and immediately deleted.

### Does AlertCatcher have ads?

No, AlertCatcher does not contain advertisements. The app is free to download and offers a lifetime premium upgrade as a one-time purchase.

### What devices does AlertCatcher support?

AlertCatcher is compatible with iPhones and iPads, allowing you to repurpose these devices as a security monitor or receiver.

### How does AlertCatcher handle interruptions like phone calls?

AlertCatcher features interruption recovery, which automatically pauses and resumes monitoring when phone calls or system alerts interrupt the device's audio hardware.

### What is the age rating for AlertCatcher?

AlertCatcher has an age rating of 4+, making it suitable for a wide range of users.

### How often is AlertCatcher updated?

The latest version of AlertCatcher is 1.0.1, and it was last updated on August 11, 2026. Updates ensure continued reliability and feature enhancements.

### Can I try AlertCatcher before buying?

Yes, AlertCatcher offers a fully featured 7-day free trial. This trial provides unrestricted access to all features, including sound, motion, video sentry, live streaming, and remote controls.

### What types of sounds can AlertCatcher detect?

AlertCatcher's edge-AI sound classifier can detect various acoustic anomalies, including glass breaking, door knocks, alarms, speech, baby crying, and human distress.

## Version history (last 3 releases)

### 1.1.0 — 2026-08-20

What's New in Version 1.1.0:

Multi-Device Monitoring: Now link one Receiver to control multiple Guardians, or link multiple Receivers to monitor a single Guardian simultaneously.
Concurrent Live Feeds: Multiple Receivers can now request and view a Guardian's live camera stream concurrently.
Enhanced Deterrent System: Triggering the siren now automatically maxes out the Guardian's speaker volume, complete with an on-screen visual countdown.
New Sound Detections: Added specialized detection for pet sounds, including dog barking variations and fowl/bird sounds.
Performance & Stability: Fixed camera preview flashes, resolved initialization freezes, and optimized audio engine transitions for a buttery-smooth experience.

### 1.0.1 — 2026-08-11

. Remote Siren Safety: Added an interactive 13-second warning countdown when triggering the deterrent siren to prevent accidental activations.
. Enhanced Sound Detection: Improved on-device AI classification for dog barking, adding better support for high-pitched and yippy barks.
. Stability Improvements: Resolved a rare crash related to audio engine initialization when taking screenshots during active guarding sessions.
. Performance & Fixes: Fixed a startup race condition with Firebase Cloud Messaging (FCM) token registration to ensure high-reliability alert delivery, and optimized device volume restoration after siren deactivation.

### 1.0.0 — 2026-08-05

No release notes.

## More apps by Golden Sphere Solutions LLC

- [ZzzCatcher: AI Snore Monitor](https://appshunter.io/ios/app/zzzcatcher-ai-snore-monitor/id6763422268)

All apps by Golden Sphere Solutions LLC: https://appshunter.io/developer/1895157724

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*