The best charles ammon apps on iPhone average 4.4★ across 201+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
Explore global earthquake patterns with real-time data and historical context. View recent seismic events on interactive maps and lists, with detailed summaries and links to official information. Understand current activity within the framework of historical seismicity.
Transform your iPhone into a sensitive seismometer to detect and visualize vibrations. Explore its educational and data-collecting capabilities for fun or serious applications.
What We Love
🚀 Sensitive and accurate
👍 Simple and easy to use
💡 Useful for various applications (e.g. monitoring vibrations, detecting heartbeat)
Room to Improve
🐛 Crashes or freezes on newer devices
🔋 High battery consumption
🔒 Lacks security/privacy features (e.g. no option to disable data transmission)
Get timely earthquake early warnings for California, Oregon, and Washington. Access safety tips, explore global earthquake data on a map, and contribute to a citizen-science seismic network. Receive notifications for earthquakes based on your region and magnitude preferences.
Yes — 16 of the top charles ammon apps we rank are free to download, including iSeismometer and MyShake Earthquake Alerts.
Does Epicentral have ads or in-app purchases?
Epicentral has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
How many charles ammon apps are on the App Store?
We track 201+ charles ammon apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
What does Epicentral do?
Epicentral is an educational application that displays lists and maps of earthquakes that have occurred globally over the last day, week, or month. It provides summaries of event properties and their relationship to nearby seismicity, along with links to official information pages.
What are the key features of Epicentral?
Key features include real-time earthquake lists and maps, customizable data views (daily, weekly, monthly), detailed event summaries, direct links to USGS earthquake information pages, and access to historical earthquake catalogs for contextual understanding.