CrowdMag is a citizen science tool developed by the University of Colorado Boulder that utilizes smartphone sensors to measure local magnetic field components. Users can record data during outdoor activities or flights to contribute to NOAA’s research on Earth's magnetic field.

Overview · Full Intel report in progress

The App DNA

What makes this app unique?

For Citizen scientists, researchers, and outdoor enthusiasts interested in geomagnetic data collection.

What does it look like?

Key features

Magnetic Field Measurementstandard

Captures Z, H, and F magnetic field components in nanotesla units for visualization as maps or graphs.

Flight Modestandard

Allows users to contribute to scientific research by measuring magnetic fields during air travel based on provided itineraries.

Data Contributionstandard

Enables users to share collected magnetic data with NOAA to assist in scientific understanding of Earth's magnetic field.

How much does it cost?

free

Velocity

Active developmentShow more...

5 versions in history. Development pace: active.

See all version history

Who built it?

University of Colorado Boulder

11 apps tracked · Utilities

PhET SimulationsPhET SimulationsCU Boulder LifeCU Boulder LifeSOS ExplorerSOS ExplorerCU Boulder SafeCU Boulder SafeCU Boulder Wise Law LibraryCU Boulder Wise Law LibraryBATP CollectBATP CollectProject SPECTRA!Project SPECTRA!Science at 100,000 FeetScience at 100,000 FeetCitizen Sky ViewCitizen Sky ViewCU Face RaceCU Face Race
Explore the full publisher profile

User Sentiment

What do users think recently?

How are ratings & reviews evolving?

Google Play
4.34 · 497
App Store
4.29 · 24

Not enough recent reviews to extract reliable themes yet.

Read the full review analysis

Competition

Competitive landscape for CrowdMag

How's the Utilities market?

The rivals identified

The Analyst's Read

Key takeaways for CrowdMag

Where is it heading?

Bottom line

While the app provides unique scientific data collection capabilities, users frequently report technical issues regarding GPS location acquisition and background recording functionality.

Report last updated

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by CrowdMag, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “CrowdMag Intelligence Report.” Updated Apr 27, 2026. https://marlvel.ai/apps/crowdmag

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