Earthquake Bells vs TerraWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Earthquake Bells
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QuakeBells – Earthquake Tracking & Early Warning System Stay informed, stay safe, and be prepared at all times. QuakeBells is more than just an earthquake app — it’s a complete safety and awareness platform. Real-Time Earthquake Alerts Get instant notifications for earthquakes in your region. Never miss critical updates. Detailed Earthquake Information View magnitude, depth, location, and time in detail. See user comments and report your experience with the “I Felt It” feature. Live Map Track earthquakes on an interactive map and analyze distance and impact zones. Reports & Analytics Explore weekly and regional earthquake data with powerful visual insights. Risk & Hazard Maps Understand earthquake risks in your area and stay prepared in advance. Family Safety Add your family members, track their safety, and stay connected during emergencies. Emergency Mode Quickly send “I’m Safe” or “I’m in Danger” alerts. Your location and status are instantly shared with your contacts. Seismograph & Early Detection Detect earthquakes earlier by analyzing seismic data and P-waves. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
TerraWatch
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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 Earthquake Bells's every 2 months. Earthquake Bells's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, ads and in-app purchases 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. Earthquake Bells sells 2 in-app purchases, starting at $4.99 per month and TerraWatch sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Earthquake Bells ships an update every 2 months, TerraWatch every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Earthquake Bells | TerraWatch |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 40 MB | 1 MB |
| Age rating | 9+ | 4+ |
| Developer | Yavuzhan KELES | Tolga Ulutas |
In-app purchases
Earthquake Bells
- Quakebells Pro Months$4.991 Month
- Quakebells Pro 6 Months$9.996 Months
TerraWatch
- TerraWatch Pro$2.99
Questions
Is Earthquake Bells free?
Is TerraWatch free?
Do Earthquake Bells or TerraWatch have ads?
Which is updated more often, Earthquake Bells or TerraWatch?
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