EarthquakeHelper vs TerraWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EarthquakeHelper
Receive real-time earthquake alerts tailored to your location. Access essential safety guides for before, during, and after seismic events. Includes emergency contact features and tsunami warnings.
- Real-time earthquake alerts
- Location-based notifications
- Safety guides (before, during, after)
- Emergency 911 screen with location
- Customizable alert radius and magnitude
- Tsunami warnings
Read full descriptionHide 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
TerraWatch
Read full descriptionHide full description
TerraWatch is a real-time monitoring app designed for farmers and landowners. FIELD MANAGEMENT Mark your fields on the map and view NDVI vegetation analysis via satellite imagery. Get a dedicated weather forecast for each individual field. WILDFIRE ALERTS Track high-confidence active fire detections near you using NASA FIRMS satellite data. Receive instant notifications when a new fire is detected within your chosen radius. EARTHQUAKE ALERTS Monitor real-time M4.5+ seismic activity from the USGS database. Get notified immediately when ground movement is detected near your location. WEATHER FORECAST View precipitation probability, temperature, wind speed, and ET₀ evapotranspiration data for your exact location. Irrigation need and frost risk are calculated automatically. PRO FEATURES • 14-day field weather forecast • 250 km, 500 km and 1000 km notification radius • Satellite map layer for advanced terrain view Data sources: NASA FIRMS, USGS, Open-Meteo, Sentinel Hub
Screenshots
Verdict
The clearest difference is update cadence: TerraWatch at every 5 days against EarthquakeHelper's every 2 weeks. 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
Both are free to download. EarthquakeHelper sells 3 one-off in-app purchases and TerraWatch sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
EarthquakeHelper ships an update every 2 weeks, TerraWatch every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | EarthquakeHelper | TerraWatch |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Liju Robin George | Tolga Ulutas |
In-app purchases
EarthquakeHelper
- Small Tip$0.99
- Medium Tip$2.99
- Large Tip$4.99
TerraWatch
- TerraWatch Pro$2.99
Questions
Is EarthquakeHelper free?
Is TerraWatch free?
Do EarthquakeHelper or TerraWatch have ads?
Which is updated more often, EarthquakeHelper or TerraWatch?
Other comparisons
