Comparison

az vs Vigilant Ear

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

az

Features
Read full description

Manage your connected smart home devices conveniently and securely with a single application at home or even remotely.

About

Vigilant Ear

This app transforms your iPhone into a sound radar for the Deaf and hard-of-hearing community. It visually displays the direction and distance of sounds like alarms, knocks, and voices on a live map, with haptic feedback. It also provides live captions of nearby speech, distinguishing between different speakers.

Highlights
  • Sound direction and distance mapping
  • Live speech captioning with speaker identification
  • Real-time alerts for emergencies and everyday sounds
  • Weather warnings and alerts
  • Apple Watch integration
  • On-device AI for sound classification
  • Name Called feature
Features
Read full description

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.

Screenshots

az4 screens
Vigilant Ear4 screens

Verdict

The call

The clearest difference is in-app purchases: az at none against Vigilant Ear's 1. az also leads on iOS requirement (12.2 vs 26.0). Vigilant Ear's advantage is update cadence (every 3 days vs every 6 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Vigilant Ear sells 1 one-off in-app purchase. az asks for nothing beyond the download.

UpkeepUpdate frequency

az ships an update every 6 months, Vigilant Ear every 3 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
az versus Vigilant Ear: the parameters behind the verdict, then further details
ParameterazVigilant Ear
PriceFreeFree
Rating—5.0 (4 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—4 — better
Update frequencyEvery 6 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS12.2 — better26.0
Further details — not scored
Size191 MB298 MB
Age rating4+4+
DeveloperAZ-NET Alfa Korlatolt Felelossegu TarsasagRobert Palmer

In-app purchases

None

az

No in-app purchases

1 purchases

Vigilant Ear

One-time1
  • Power Pack+$5.99

Questions

Is az free?
az is free to download, with no in-app purchases.
Is Vigilant Ear free?
Vigilant Ear is free to download, with in-app purchases available.
Do az or Vigilant Ear have ads?
Neither az nor Vigilant Ear shows ads.
Which is updated more often, az or Vigilant Ear?
az ships an update every 6 months, and Vigilant Ear every 3 days. Most recently, az was updated on October 25, 2026 and Vigilant Ear on November 5, 2026.

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