Launched this week

Sentry: Offline Voice SOS for Dumbphones

Launched this week

Turn spare or dumbphones into 100% offline voice safety tool

3 followers

Turn spare or dumbphones into 100% offline voice safety tool

3 followers

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Sentry turns any Android or minimalist dumbphone into a 100% offline emergency safety beacon with zero monthly subscriptions. Key Features: • 🎤 Hands-Free Voice SOS: Triggers alerts via local offline wake-words (runs on CPU, zero internet/cloud). • 📶 2G SMS Dispatch: Sends raw satellite GPS coordinates over basic SMS when 4G/5G is down. • 🚨 Impact Detection: Triggers distress protocols on severe falls. • 🔒 Privacy-First: Zero cloud tracking, no recurring fees.

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Launch tags:Android•Productivity•Privacy

Launch Team

Framer AI AgentsDesign and publish professional sites with AI

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Maker

📌

Hi Product Hunt! 👋 I’m Marcus, an independent developer. I built Sentry with a simple belief: Personal safety shouldn't be locked behind expensive Big Tech monthly subscriptions or require $1,000 flagship phones. Most corporate safety apps rely on cloud tracking and recurring fees. Sentry takes the opposite approach—it runs 100% locally on your phone's CPU with zero internet needed. Whether you're hiking off-grid, using a minimalist Android dumbphone (like Cat S22 / Qin), or repurposing a spare phone into a bug-out emergency tool, Sentry monitors for offline voice wake-words ("HELP ME") or severe impacts, then sends raw GPS coordinates via basic 2G SMS. I’d love your feedback! I’m giving away free Lifetime Promo Codes for the PH community—just drop a comment below and I'll send one over! 🚀

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2d ago