Fault Line vs Cuspart
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fault Line
This app provides real-time earthquake tracking and alerts, helping you stay informed about seismic activity worldwide. It offers interactive maps, customizable notifications, and family safety features to keep your loved ones safe during emergencies.
- Real-time earthquake feed
- Interactive earthquake map
- Customizable smart alerts
- Family safety circle
- Emergency preparedness tools
- Widgets and Live Activities
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STAY SAFE WITH REAL-TIME EARTHQUAKE TRACKING Faultline is your essential earthquake safety companion, providing instant alerts, comprehensive tracking, and family protection features. Monitor global seismic activity and keep your loved ones safe during emergencies. REAL-TIME EARTHQUAKE MONITORING Track earthquakes worldwide with data from USGS, EMSC, KOERI, and AFAD. Get instant notifications based on your location and magnitude preferences. • Live earthquake feed from multiple global sources • Filter by magnitude, location, and data source • Detailed information including depth, time, and coordinates • Historical earthquake data and trends • Community reports and felt experiences INTERACTIVE MAP VISUALIZATION View all earthquakes on a single map with color-coded magnitude indicators. • Real-time earthquake pins with magnitude badges • Heat map visualization of seismic activity • Fault line overlays showing tectonic boundaries • Distance calculator from your location • Tap any earthquake for detailed information CUSTOMIZABLE SMART ALERTS Receive notifications that matter to you. Set magnitude thresholds and choose specific regions. • Critical alerts break through Silent Mode and Do Not Disturb • Magnitude filtering from M2.0 to M9.0+ • Multi-country and region selection • Source-specific notifications • Searchable notification history FAMILY SAFETY CIRCLE Create private safety circles to check on family members during earthquakes. Share your status, location, and battery level instantly. • Quick status: I'm Safe or I Need Help • Real-time location sharing with battery status • Safety check requests to all members • Meeting point coordination • Push-to-talk voice messaging • Emergency bag readiness tracking EMERGENCY PREPAREDNESS Access critical safety tools when seconds count. • Emergency whistle with continuous playback • Earthquake safety guidelines • Survival checklist and preparation guide • Emergency contact quick-dial • Flashlight and SOS signal WIDGETS AND LIVE ACTIVITIES Stay informed without opening the app. • Home screen widgets showing recent earthquakes • Nearby earthquakes widget • Family safety status widget • Live Activities on Dynamic Island for M4.0+ quakes • Lock screen alerts COMMUNITY FEATURES Connect with others who experienced the same earthquake. • Share felt experience and intensity reports • Read community comments • View aggregated reports on maps • Contribute to seismic research PREMIUM FEATURES Upgrade to Faultline Pro: • Ad-free experience • Unlimited family circle members • Advanced earthquake statistics • Priority notifications • Extended historical data • Custom alert sounds TRUSTED DATA SOURCES • USGS (United States Geological Survey) • EMSC (European-Mediterranean Seismological Centre) • KOERI (Kandilli Observatory) • AFAD (Disaster and Emergency Management) PRIVACY AND SECURITY Your safety is our priority. All data is encrypted and you control what is shared. • End-to-end encrypted communications • Optional location sharing • No data sold to third parties • GDPR and CCPA compliant SUPPORTED LANGUAGES Available in 34 languages including English, Spanish, Turkish, Arabic, Chinese, Japanese, and more. Whether you live in an earthquake-prone region or travel frequently, Faultline gives you the tools to stay safe and informed. Download now and join thousands of users worldwide. Terms: https://termify.io/terms-and-conditions/GaTEsCnSuA Privacy: https://termify.io/privacy-policy/teSydMmD9K EULA: https://termify.io/eula/HDJf1A8jCt
Cuspart
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Master your seismic awareness with Cuspart: Earthquake. Designed for seismology enthusiasts, researchers, and safety-conscious individuals, Cuspart provides a professional-grade interface to monitor global earthquake activity. Whether you are tracking a recent tremor or analyzing long-term seismic risks in your region, get instant access to precise data. REAL-TIME GLOBAL MONITORING Stay ahead of seismic events as they happen. Track earthquakes worldwide with live data feeds. Access critical details for every event instantly, including: • Precise Magnitude & Depth • Exact Geographic Coordinates • Time of Occurrence • Event Intensity INTERACTIVE FAULT LINE MAPS Understanding earthquakes starts with understanding the ground beneath us. • Visualize major active fault lines and tectonic plate boundaries on a global scale. • Correlate historical data with active fault zones to assess potential risks in your area. NUCLEAR SAFETY & RISK ANALYSIS A unique feature designed for advanced situational awareness. • View the locations of nuclear power plants globally. • Analyze the proximity of seismic events to these critical facilities. • Evaluate potential hazards to stay informed and prepared. ADVANCED VISUALIZATION TOOLS Turn complex data into actionable insights. • Multiple Map Types: Switch seamlessly between Standard, Satellite, and Hybrid views to analyze geographical terrain and impact zones. • Comprehensive Statistics: Use detailed graphs and charts to visualize seismic intensity, frequency, and distribution trends over time. WHY CUSPART? • Accuracy: Data aggregated from reliable global seismic networks. • Speed: Real-time updates ensure you are never the last to know. • Clarity: A clean, user-friendly interface optimized for iPhone and iPad. Earthquakes are unpredictable, but your preparedness doesn't have to be. Download Cuspart: Earthquake today and explore the world of seismology with confidence.
Screenshots
Verdict
Fault Line and Cuspart are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Fault Line sells 3 in-app purchases, starting at $1.99 per month and Cuspart sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Fault Line ships an update fortnightly, Cuspart monthly. The most recent releases landed on November 4, 2026 and October 29, 2026 respectively.
| Parameter | Fault Line | Cuspart |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (57 ratings) — better | — |
| Positive reviews | 55.6% of reviews | — |
| Number of ratings | 57 — better | — |
| Update frequency | Fortnightly — better | Monthly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 49 MB |
| Age rating | 4+ | 12+ |
| Developer | Murat Kuslu | Mustafa Tolga DALBUDAK |
In-app purchases
Fault Line
- Fault Line Pro Monthly$1.991 Month
- Fault Line Pro Yearly$9.991 Year
- Fault Line Pro$19.99
Cuspart
- Upgrade to Pro$0.99
- Espresso$1.49
- Flat White$1.99
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- Caffè Americano$2.49
- Caffè Mocha$2.99
- Classic Hot Chocolate$3.49
- Special Hot Chocolate$3.99
Questions
Is Fault Line free?
Is Cuspart free?
Do Fault Line or Cuspart have ads?
Which is updated more often, Fault Line or Cuspart?
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