Alerts for sirens, alarms, door knocks, crying babies shown on a live map with their direction. Live captions in each speaker's language. Official weather alerts.
THE DIRECTION A SOUND CAME FROM — AND HOW FAR AWAY
That is what other sound-alert tools leave out. Vigilant Ear turns the iPhone you already own into a sound radar for the Deaf, hard-of-hearing, and CODA community: sirens, alarms, knocks, a crying baby, severe weather, and the voices around you — each one placed on a live map with its direction, rough distance, and a haptic buzz, the moment it happens.
It also tells you WHO is speaking. Live captions separate the people around you by voice, and link nearby iPhones into one shared picture of the room. All on-device.
Designed for Deaf and hard-of-hearing users who rely on visual captions and alerts. It's a visual, haptic tool - not built for blind users. The interface is high-contrast dark by design, and every alert is distinguished by shape and icon — never by color alone — so it works for color-blind users, too.
Using on-device AI, it identifies hundreds of everyday and emergency sounds in real time and estimates their direction and rough distance — nothing is sent to the cloud or off your device.
Vigilant Ear is an experimental research and accessibility aid — not a certified or life-saving device. Always use your own situational awareness.
ALWAYS FREE:
• Live captions of nearby speech (Speaker Mode), separated by voice
• Live text to speech of captions to any Bluetooth audio device (Beats, AirPods, hearing aids)
• Real-time alerts — alarms, sirens, knocks, doorbells, a crying baby, a person approaching
• Official Weather warnings and alerts — US (NWS), Europe (MeteoGate), Japan (JMA), China (CMA), Korea (KMA), India (NDMA), Canada (ECCC), Australia (BOM), and Brazil (INMET) — gated by geographic position of your device. Fed by our relay so you never connect directly to a foreign government's servers.
• Live radar map with directional guidance, multi-target tracking, and haptics
• Alerts appear on your Apple Watch too, even when your iPhone is asleep as long as the app is running (even minimized)
• Name Called — when someone says your name, your iPhone and Apple Watch tap and the watch points toward the voice. Needs Speaker Mode on.
• Siri, Shortcuts & Action Button — ask "What's around me?" (or type it to Siri) for a spoken-and-on-screen summary of nearby sounds, and start or stop listening hands-free
• 300+ on-device sound classifications — your audio or telemetry data never leaves your device
• Earthquake alerts if a deep rumble (infrasounds nobody can hear) is recorded with later confirmation from the USGS.
POWER PACK+ — optional, one-time charge
• Translation — captions converted into your language, on-device
• Constellation — link nearby iPhones into a shared, more precise picture of sounds (acoustic mesh/biangulation/triangulation)
• Music ID — name the songs playing around you
• Remote Link — reach someone who isn't with you, using video and text. No audio at any point, so nothing depends on hearing at either end — and it gives you a way to sign with someone. You send a code; they join free, without Power Pack+.
• Bring Your Own Model (BYOM) — Load your own sound model of classifications using data you can also collect in-app.
Power Pack+ is free to try for your first 90 days; after that, captions and alerts stay free forever and a small one-time fee keeps the glamorous extras. No subscription, ever.
Privacy first: all listening, transcription, translation, and sound classification run entirely on your device. The only exception: if you use Music ID, a short audio fingerprint — never raw audio — goes to Apple's Shazam service to name the song. Compare that to other apps!
Built for the Deaf and hard-of-hearing community. Stay aware.
THE UNIVERSAL TRANSLATOR, FOR REAL
Science fiction promised a device that simply understands — no setup, no picking languages. Vigilant Ear is the closest thing yet: it detects the language being spoken on its own, separates the voices, and captions every speaker in the room in your language, live and entirely on your device.
I found the app to be incredibly helpful in detecting unexpected sounds and conversations. As someone who’s older, I feel more secure using this app to become more aware of my surroundings.
Amazing game changer for hearing impaired
Quiche.
Very intelligent app. It’s very sensitive to alert to many of the audible sounds that keep me safe and help me navigate
NEW — Weather and earthquake checks keep going while Vigilant Ear is closed: your iPhone wakes it from time to time to check the last place it saw you, and it alerts you just as it would when open. iOS decides how often.
NEW — The Standing Watch lamp on Apple Watch: with Vigilant Ear open on your watch, the face shows the same lamp as your phone, just above the title: steady, a new voice and where it is, or an emergency, in your language. It also shows when listening is off.
NEW — Flash with alerts: the camera light flashes with each alert, in the same pattern as the vibration, while Vigilant Ear is open. It's on by default; turn it off in Preferences. For alerts while your phone is locked, turn on the LED flash for alerts in your iPhone's Accessibility settings.
NEW — If Vigilant Ear is closed and stops listening, it lets you know so you can open it again.
CHANGED — Weather warnings, road maps and routes, radar, wind and the help list use your location more closely again, as before version 1.1.15 (about 1 km for weather warnings), so warnings and routes match where you are. The Privacy Policy explains exactly what is sent.
BETTER — Captions show emphasis on phones with Caption Support: a word someone stresses is drawn heavier, and a shouted line stands out.
BETTER — Captions on Apple Watch start at the top of the screen.
FIXED — A warning still in force could be announced again each time Vigilant Ear opened.
FIXED — Closing Vigilant Ear on your Apple Watch while captions were showing could close the app on your phone.
FIXED — The Update button could stay up right after you updated.
FIXED — On first launch, switching away from the app could put a Motion & Fitness request in front of the location request, so setup looked stuck.
FIXED — Caption Support recovers if its downloaded files go missing.
And, miscellaneous improvements to base functionality.
Version 1.1.16
The developer, Robert Palmer, 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:
Location
Other Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More