Comparison

Disaster Watch vs Tremor

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

Head to head
About

Disaster Watch

Receive timely alerts for weather, earthquakes, and tsunamis directly from Maldivian authorities. This application is designed to keep you informed and safe.

Highlights
  • Weather alerts
  • Earthquake alerts
  • Tsunami alerts
  • Official alerts from Maldivian authorities
  • Safety information
Features
Read full description

Stay safe by keeping updated on weather, earthquake and tusnami alerts issued by Maldivian authorities. Application made for National Disaster Management Center of the Maldives

About

Tremor

Track earthquakes worldwide in real-time with an interactive 3D globe. Get instant updates from USGS and EMSC, and learn about seismic activity. Offers premium features for ad-free experience and advanced insights.

Highlights
  • Real-time earthquake tracking
  • Interactive 3D globe map
  • Instant USGS/EMSC data updates
  • Accurate quake distance from your location
  • Earthquake learning resources
  • Ad-free Pro version with smart alerts
Features
Read full description

The earth is always moving. Tremor shows you where — live, on a 3D globe you can spin. Tremor pulls earthquake data from the USGS, the global standard for seismic data, every minute. Zoom the globe and watch new quakes pulse in as they're reported. FREE • Live global 3D map of earthquakes • Live feed of the latest earthquakes worldwide • Alerts for strong (M6+) earthquakes anywhere in the world • Tap any quake for magnitude, depth, and details • Data straight from the USGS, refreshed every minute TREMOR PRO • Ad-free — the whole map, none of the clutter • IntelliQuake Alerts — smart notifications tuned to your location • IntelliQuake Facts — instant, readable insight on every significant quake • Fault Lines — see the fractures quakes trace along • Tectonic Plates — the plate boundaries driving it all • Satellite Maps — swap to photoreal terrain Whether you're near a fault, riding out an aftershock sequence, or just fascinated by the planet, Tremor turns raw seismic data into something you can actually watch. — SUBSCRIPTION Tremor Pro is an auto-renewable subscription. Payment is charged to your Apple Account at purchase and renews automatically unless canceled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://gettremor.app/privacy

Screenshots

Disaster Watch4 screens
Tremor4 screens

Verdict

The call

The clearest difference is rating: Disaster Watch at 5.0 against Tremor's 4.4. Disaster Watch also leads on in-app purchases (none vs 3) and ads (none vs shown). Tremor's advantage is ratings volume (9 vs 1). On price 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. Tremor sells 3 in-app purchases, starting at $2.99 per month. Disaster Watch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Disaster Watch holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Tremor has 9 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Disaster Watch ships an update every 2 days, Tremor monthly. The most recent releases landed on November 2, 2026 and November 9, 2026 respectively.

Scorecard7 real differences · 3 level
Disaster Watch versus Tremor: the parameters behind the verdict, then further details
ParameterDisaster WatchTremor
PriceFreeFree
Rating5.0 (1 ratings) — better4.4 (9 ratings)
Positive reviews—100.0% of reviews
Number of ratings19 — better
Update frequencyEvery 2 days — betterMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better15.1
Further details — not scored
Size32 MB67 MB
Age rating4+4+
DeveloperMohamed MaailFORTYNINE AND A HALF LABS, LLC

Customer experience

Disaster Watch

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Tremor

All ratings7 ratings
Positive85.7%
Neutral0.0%
Negative14.3%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Disaster Watch

No in-app purchases

3 purchases

Tremor

Subscriptions2
  • Tremor Pro Monthly$2.991 Month
  • Tremor Pro Annual$19.991 Year
One-time1
  • Tremor Pro Lifetime$49.99

Questions

Is Disaster Watch free?
Disaster Watch is free to download, with no in-app purchases.
Is Tremor free?
Tremor is free to download, with in-app purchases available.
Which has better reviews, Disaster Watch or Tremor?
Disaster Watch is rated higher. Disaster Watch averages 5.0 out of 5 from 1 ratings, while Tremor averages 4.4 from 9 ratings.
Do Disaster Watch or Tremor have ads?
Tremor shows ads; Disaster Watch does not.
Which is updated more often, Disaster Watch or Tremor?
Disaster Watch ships an update every 2 days, and Tremor monthly. Most recently, Disaster Watch was updated on November 2, 2026 and Tremor on November 9, 2026.

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