EarthAlert vs Hazard Intelligence
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EarthAlert
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See where nearby earthquakes happened, how large they were and when they occurred. EarthAlert brings USGS reports, distance filters and epicenter maps into one clear view. FOCUS ON YOUR AREA Choose a distance of 50–1,000 km and a minimum magnitude from M1.0 to M9.5. View approximate distances in kilometers or miles. Location access is required for nearby results; when a current location is unavailable, nearby results and notifications pause. LOOK BACK AT RECENT ACTIVITY Switch between the past 24 hours and 7 days. Open an earthquake to see its location, depth, local time and epicenter map. Follow the link to the USGS report, or share your experience through USGS “Did You Feel It?” KNOW HOW CURRENT THE DATA IS See when the app last checked for reports and when the USGS feed was updated. A failed refresh or outdated feed is shown clearly instead of being presented as a current safety status. OPTIONAL NOTIFICATIONS Enable background updates for recent earthquakes matching your filters. Initial setup and changes to your notification filters do not replay earlier earthquakes. Updates use your last checked location, and pause after 24 hours without a new location. IMPORTANT LIMITATIONS EarthAlert is an information viewer, not an earthquake early-warning or prediction service. Background checks are scheduled by your device; notifications may be delayed or missed. They do not work after force-quitting the app or restarting your device until you reopen it. Internet access, location permission, notification permission and Background App Refresh are required for background notifications. Data comes from the U.S. Geological Survey (USGS). Reports may be revised and coverage varies by region. Magnitude does not describe the shaking intensity at your location. EarthAlert does not issue or determine tsunami warnings; relevant events link to NOAA's official tsunami information. Follow local authorities for emergency alerts and safety instructions. Free with advertising. The app interface is in English.
Hazard Intelligence
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Every threat to your safety, read in real time — in one number, for exactly where you are. Hazard Intelligence fuses live data from the agencies that watch the planet — NASA, USGS, and the National Weather Service — into a single 0–100 risk score that updates as you move. No noise. No dashboards to babysit. Just a clear read on the danger around you, and a one-tap line to the people who matter when something goes wrong. LIVE HAZARD INTEL Active wildfires, earthquakes, severe-weather alerts, and power outages — pulled from public government feeds and fused into one location-aware score. Drill into any source to see exactly what's driving it. A 24-hour history sparkline and a 6-hour projection show you where conditions are heading, not just where they are. INSTANT SOS One tap shares your live GPS location, your current risk conditions, and a timestamp with up to five trusted contacts over SMS. They don't need the app. They don't need an account. They just need to know where you are. CRASH DETECTION On-device motion sensing watches for potential vehicle impacts. If one is detected, a 30-second cancellable countdown puts you in control. It never auto-dials 911 — you decide. BUILT FOR WHEN IT MATTERS - Background monitoring quietly watches your area and alerts you when risk crosses your threshold — even when the app is closed. - Home Screen and Lock Screen widgets keep your current risk in view at a glance. - Offline cache keeps your last reading available when the network drops. PRIVACY BY DESIGN No account. No login. No ad networks, no third-party trackers. Your location is used only to compute your risk score, it is never tied to an identity, and your contacts never leave your device. Hazard Intelligence is a situational-awareness tool. It is not a substitute for 911 or professional emergency services — in a life-threatening emergency, always contact local authorities.
Screenshots
Verdict
The clearest difference is ads: Hazard Intelligence at none against EarthAlert's shown. EarthAlert's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | EarthAlert | Hazard Intelligence |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Takahiro Onishi | Data Squid Labs LLC |
In-app purchases
EarthAlert
No in-app purchases
Hazard Intelligence
No in-app purchases
Questions
Is EarthAlert free?
Is Hazard Intelligence free?
Do EarthAlert or Hazard Intelligence have ads?
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