Earthquake & Tsunami Alerts
by AccountsPal Inc.
- Weather
- Free
- Zombie
- Small & simple · 94
- Rating
- 0.0
- 0 ratings · Brazil storefront
- Last update
- May 30, 2021
- Version 1.2
- Size
- 34 MB
- Category
- Weather
- Tracked since
- Oct 9, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
#1 Earthquake app for iPhone and iPad.
This app is brought to you by SMS Tsunami Warning, the award-winning earthquake monitoring app since 2011.
The app turns your phone into an alert system for earthquakes and tsunamis. It monitors seismic activity worldwide 24/7 and it delivers an alert to your iOS device if conditions are met (magnitude, user’s distance from quake, etc.). Alerts are delivered as push notifications with a loud siren sound.
APP FEATURES
- Live earthquake map
- Beautiful simple design, easy to use
- No ads
- Data feeds from various sources
- Metrical / Imperial measurement systems
- earthquake alerts / tsunami alerts
- Loud siren sound
- Quake data (location, magnitude, depth, distance, population density nearby, etc.)
- Great educational tool
- Support for the latest iPhone and iPad models.
The user interface is simple and easy to use. For a better reading, the map only shows "significant" earthquakes (with magnitude equal to or bigger than 4.5 on the Richter scale) detected globally in the last 24 hours. In the Settings screen, you can set your parameters for receiving the alerts (ie. user’s distance from the quake’s epicenter and magnitude). After the parameters are set, you can enable (or disable) the alarm system in one touch for total peace of mind. The app supports both metric and imperial measurement systems (Kilometers / Miles) to assess distances.
Each quake is represented by a marker on the map. Tap on the marker to open the details panel and dig more into the quake's data (depth, population estimates, etc.). The app is directly connected to our web platform, where you can learn more about a specific seismic event or, in general, get access to a vast literature concerning earthquakes and tsunamis (fault lines, features, history, etc.).
The app is a great educational tool and it offers a vital alert service, especially to those living by the coastline or in seismic regions.
The app is free and it contains NO ads. Push alerts are offered as in-app purchase for tiny $2.99 yearly fee (it may change slightly based on your country).
End User License Agreement (EULA) available here: https://www.sms-tsunami-warning.com/pages/service-terms-mobile
What’s new
Release notes for the latest version, as written by the developer.
Performance improvements and bug fixes.
Rank history
Daily position in the Montserrat charts. #1 is at the top.
- Best rank
- #65
- Current rank
- #78
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
94/100
Small & simple
- Developer size100% · 25
Developer: 1 app on the charts
- Audience size100% · 20
Ratings: 0
- App size100% · 10
Size: 34 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof90% · 30
Best rank #10, 36 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 1.2LatestReleased May 30, 2021