Comparison

Hazard Intelligence vs Tremor

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

Head to head
About

Hazard Intelligence

Features
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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.

About

Tremor

Features
Read full description

Tremor tells you about earthquakes the moment they're confirmed — not before they happen, but fast enough to matter. Track your own location for free, with no restrictions, watch over the people and places you care about anywhere in the world, and get clear, calm detail instead of panic. MULTI-LOCATION WATCHING Your own location is always covered — full-speed alerts, no restrictions, no paywall. Add more locations to watch parents across the country, family overseas, or a second home, each with its own label, radius, and alert threshold. (Free includes 1 location. Pro unlocks up to 10.) ALERT LEVELS, DAY AND NIGHT Pick how sensitive Tremor should be, from every noticeable tremor to only the major ones, and set quiet hours so small quakes don't wake you. Pro adds a free-form threshold slider plus a separate night-time level, so only the big ones break through overnight. WIDGETS & LIVE ACTIVITY Add Tremor to your Lock Screen or Home Screen to see the latest earthquake at a glance. When a significant quake strikes near a place you're watching, a Live Activity opens right on your Lock Screen and in the Dynamic Island — magnitude, distance, and aftershock count, updating live until it's over. TSUNAMI INFORMATION Tremor relays tsunami bulletins from NOAA's Tsunami Warning Centers (NTWC and PTWC), clearly labeled by level — from routine information statements up to active warnings — so you always know what's real. Notifications are free for everyone; Pro adds a live map layer with threat details. PRIVACY BY DESIGN Tremor never asks for background or always-on location access, only what's needed when you set up alerts. We store just an approximate area, about 2.5 km wide, never your exact address. No trail of everywhere you've been, because we never collect one. TREMOR PRO Pro is for people who watch over more than themselves: • Up to 10 watched locations instead of 1 • A free-form alert threshold, plus a separate night-time level, for every location • Full earthquake history and stats, not just the last 48 hours • Every widget size, with your choice of which location to display • Tsunami map layer with threat details • Alternate app icons WHAT TREMOR IS — AND ISN'T Tremor reports earthquakes that have already happened, using data confirmed by USGS and EMSC, as fast as that confirmation reaches us. It is not an early-warning system, and it cannot predict earthquakes or alert you before shaking starts — no app can honestly promise that. What we do promise: clear, fast, honest information for the place you live, and everywhere else you're watching. Download Tremor and know the moment it matters. Support: https://alihanaktay-legal.github.io/tremor-legal/tremor-support.html Privacy Policy: https://alihanaktay-legal.github.io/tremor-legal/tremor-privacy.html Data: USGS, EMSC (earthquakes) · NOAA NTWC/PTWC (tsunami)

Screenshots

Hazard Intelligence4 screens
Tremor4 screens

Verdict

The call

The clearest difference is in-app purchases: Hazard Intelligence at none against Tremor's 3. On price, ads, device support and iOS requirement 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. Tremor sells 3 in-app purchases, starting at $2.99 per month. Hazard Intelligence asks for nothing beyond the download.

Scorecard1 real difference · 5 level
Hazard Intelligence versus Tremor: the parameters behind the verdict, then further details
ParameterHazard IntelligenceTremor
PriceFreeFree
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhoneiPhone
Requires iOS17.017.0
Further details — not scored
Size8 MB12 MB
Age rating4+4+
DeveloperData Squid Labs LLCAlihan Aktay

In-app purchases

None

Hazard Intelligence

No in-app purchases

3 purchases

Tremor

Subscriptions2
  • Monthly Membership$2.991 Month
  • Annual Membership7 Days trial$19.991 Year
One-time1
  • Lifetime Membership$49.99

Questions

Is Hazard Intelligence free?
Hazard Intelligence is free to download, with no in-app purchases.
Is Tremor free?
Tremor is free to download, with in-app purchases available.
Do Hazard Intelligence or Tremor have ads?
Neither Hazard Intelligence nor Tremor shows ads.

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