Comparison

CelsiUSA vs EarthquakeHelper

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

Head to head

CelsiUSA

Switch to Celsius the easy way

Stay Safe During Earthquakes

Free

☀️ Weather

No ratingsView app →

About

CelsiUSA

Features

Read full description

CelsiUSA is our app to help you switch to Celsius the easy way. Most of the world uses Celsius, but the US still uses Fahrenheit. Change is hard, but also good and it's time for us to change Celsius to the standard. Privacy: https://doorhingeparkour.com/privacypolicy.html EULA: https://doorhingeparkour.com/eula.html

About

EarthquakeHelper

Features

Read full description

EarthquakeHelper keeps you informed and safe during seismic events. Get real-time earthquake alerts based on your location, access immediate safety guides, and know exactly what to do before, during, and after an earthquake. FEATURES: - Real-time earthquake alerts from USGS - Location-based notifications - What to do During and After guides - Emergency 911 screen with your location - Magnitude and radius alert customization - Tsunami warnings - No ads or payments needed

Screenshots

CelsiUSA3 screens

EarthquakeHelper4 screens

Verdict

The call

The clearest difference is update cadence: EarthquakeHelper at every 2 weeks against CelsiUSA's every 7 months. CelsiUSA's advantage is iOS requirement (16.0 vs 18.5). On price, ads, in-app purchases 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. CelsiUSA sells 1 one-off in-app purchase and EarthquakeHelper sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CelsiUSA ships an update every 7 months, EarthquakeHelper every 2 weeks. Both last shipped on October 1, 2026.

Scorecard2 real differences · 4 level

CelsiUSA versus EarthquakeHelper: the parameters behind the verdict, then further details
Parameter	CelsiUSA	EarthquakeHelper
Price	Free	Free
Update frequency	Every 7 months	Every 2 weeks — better
Ads	No	No
In-app purchases	Yes	Yes
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	16.0 — better	18.5
Further details — not scored
Size	12 MB	2 MB
Age rating	4+	4+
Developer	Andrew Myers	Liju Robin George

In-app purchases

1 purchases

CelsiUSA

One-time1

Remove Ads$1.99

3 purchases

EarthquakeHelper

One-time3

Small Tip$0.99
Medium Tip$2.99
Large Tip$4.99

Questions

Is CelsiUSA free?

CelsiUSA is free to download, with in-app purchases available.

Is EarthquakeHelper free?

EarthquakeHelper is free to download, with in-app purchases available.

Do CelsiUSA or EarthquakeHelper have ads?

Neither CelsiUSA nor EarthquakeHelper shows ads.

Which is updated more often, CelsiUSA or EarthquakeHelper?

CelsiUSA ships an update every 7 months, and EarthquakeHelper every 2 weeks. Most recently, CelsiUSA was updated on October 1, 2026 and EarthquakeHelper on October 1, 2026.