Download Android Apps and Games
AppBrain
  • Apps
  • Apps being viewed right now Trending apps today Most popular apps All-time most downloaded apps Top rated apps
  • Intelligence ▾
    Intelligence overview → Track any Android app or your whole market
    Track & analyze
    Keyword Tracker & OptimizerTrack & improve Play rankings App Performance ReportOne-off PDF for any app StatisticsFree Android & Play market stats
    Promote your app
    Featured Apps App Links
  • Intelligence
  • Pricing
  • Dashboard
  • Sign up
  • Log in
Last updated on: 2026-05-25
App Store Apps > Utilities > CrowdMag
CrowdMag icon

CrowdMag

2.2.7
University of Colorado Boulder
4.29
24 reviews
Free

CrowdMag Screenshot 1 of 5
CrowdMag Screenshot 2 of 5
CrowdMag Screenshot 3 of 5
CrowdMag Screenshot 4 of 5
CrowdMag Screenshot 5 of 5
Download from the App Store

About CrowdMag

CrowdMag is an overall app developed by University of Colorado Boulder.

Download Statistics

User Ratings

CrowdMag is rated 4.29 out of 5 stars. The rating is based on 24 ratings.

App Information

CrowdMag is FREE to download. The APK download size is 27.92 MB. The latest version available is 2.2.7. The last update was on March 11, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play October 2014.

Description
Introducing CrowdMag's newest feature: Flight Mode, which lets you contribute to scientific research by measuring the magnetic field as you fly around the world. To get started, simply provide your itinerary on the CrowdMag app, and you'll be able to turn your flight into a scientific expedition. Check out this step-by-step tutorial for measuring data while flying: https://geomag.colorado.edu/crowdmag-flight-mode-tutorial .

CrowdMag is an app that lets you measure the local magnetic field using your smartphone. You can view the data as a graph or a map in nanotesla units. CrowdMag measures the Z (downward component), H (horizontal intensity), and F (total intensity) magnetic field components. You can use CrowdMag for measuring magnetic data during outdoor activities, while flying, or to conduct your own experiments. You can also share it with NOAA to help scientists better understand Earth's magnetic field.

If you're going for a walk, run, or other outdoor activities, you can use CrowdMag to measure the magnetic data along your path and save it as a "magtivity." And, if you get a new phone, don't worry! You can export a backup of your CrowdMag data and save it on your computer. This way, if you have to reset your phone or switch to a new one, you can import your backup and continue using CrowdMag without losing your data or progress.

CrowdMag also has a magnetic calculator that provides magvar (declination), the magnetic field's dip angle, total magnetic field, and other magnetic field components based on the latest World Magnetic Model (WMM2020). Some of the other features of CrowdMag include creating your own magtivities, customizing recording frequency and location accuracy, exporting your data via email or Google Drive, and seeing generalized crowdsourced magnetic data from other users.

And, before we forget, CrowdMag also features a compass that distinctly shows both true and magnetic north. As an added feature, the compass also has a 3D display with an optional audio output - check it out!

CrowdMag features:

* Create your own magnetic activity (called a "magtivity")
* Measure data while flying
* Customize recording frequency and location accuracy to your preferences
* View your magnetic data on an interactive Google Map
* Graph your data as a time series line chart
* Check the quality of your data by comparing it with the World Magnetic Model (WMM)
* Export your data as a CSV file
* Clear stored data on your phone when you want to start fresh
* Choose to share your data with NOAA (optional)
* See generalized crowdsourced magnetic data from other users
* Use the live magnetic compass for 2D and 3D rendering
* View information about the current solar magnetic disturbance
* Use the most up-to-date magnetic field model (WMM2020)
* Export your data via email, Google Drive, or other options
* Export a CrowdMag backup to save your contributions' status and data
* Import your CrowdMag backup (works across different phone platforms)


Visit https://geomag.colorado.edu/crowdmag to see crowdsourced magnetic data .
Show more Show less

More data about CrowdMag

Price Free to download
Rating 4.29 based on 24 ratings
Ranking Not ranked
Version 2.2.7
App download size 27.9 MB
Suitable for Everyone

Alternative downloads for the CrowdMag app

LinkComm icon LinkComm
OTT HydroMet Corp
4.7
Free
3 ratings
VuSitu icon VuSitu
In-Situ Inc.
4.9
Free
16 ratings
Polar Scope Align Pro icon Polar Scope Align Pro
Dimitrios Kechagias
4.9
$3.99
298 ratings
Polar Scope Align icon Polar Scope Align
Dimitrios Kechagias
4.7
Free
171 ratings
LoggerLink icon LoggerLink
Campbell Scientific
3.0
Free
2 ratings
Magnetic Storms icon Magnetic Storms
Andre Molina
4.3
Free
19 ratings
Magnetscape Lite icon Magnetscape Lite
TOON,LLC
3.8
Free
4 ratings
SynScan Pro icon SynScan Pro
Astropower Technology Co. Ltd.
2.6
Free
54 ratings

More from University of Colorado Boulder

PhET Simulations icon PhET Simulations
University of Colorado Boulder
4.5
$0.99
47 ratings
SOS Explorer icon SOS Explorer
University of Colorado Boulder
4.7
Free
20 ratings
CU Boulder Life icon CU Boulder Life
University of Colorado Boulder
3.6
Free
18 ratings
COTWINS icon COTWINS
University of Colorado Boulder
4.8
Free
4 ratings
BATP Collect icon BATP Collect
University of Colorado Boulder
5.0
Free
3 ratings
CU Face Race icon CU Face Race
University of Colorado Boulder
3.0
Free
2 ratings
Project SPECTRA! icon Project SPECTRA!
University of Colorado Boulder
0.0
Free
CU Boulder Safe icon CU Boulder Safe
University of Colorado Boulder
0.0
Free

Changelog of CrowdMag

No changelog data

Show more Show less

Developer information for University of Colorado Boulder

University of Colorado Boulder

N/A

Share CrowdMag

Comments on CrowdMag for iOS

We don't have enough comments to show example comments. Please check back later.

App Store Rankings for CrowdMag

This app is not ranked

Technologies used by CrowdMag

Apps other people are watching Popular Overall Today's trending apps Apps on sale Top new apps
LinkComm icon LinkComm
VuSitu icon VuSitu
Polar Scope Align Pro icon Polar Scope Align Pro
Polar Scope Align icon Polar Scope Align
LoggerLink icon LoggerLink
Magnetic Storms icon Magnetic Storms
Magnetscape Lite icon Magnetscape Lite
SynScan Pro icon SynScan Pro

Back to top
AppBrain Intelligence premium content

Subscribe now to get full and unlimited access to AppBrain Intelligence. You'll have access to:

  • App Intelligence dashboard (performance timeline, competitor comparison, country rankings, insight cards)
  • Detailed ranking data per app
  • Full timeline per developer
  • Device market shares data per country
1 Month

$75/mo
(billed every month)

SAVE 0%
Subscribe
3 Months

$65/mo
($195 billed every 3 months)

SAVE 13%
Subscribe
1 Year

$57.50/mo
($690 billed every year)

SAVE 23%
Subscribe
Each subscription will automatically renew 3 days before the expiration date for the same time period. Subscriptions can be cancelled at any time before the renewal.

AppBrain is a directory focused on discovering great apps and games. We give statistics, rankings and search options that Google Play and the App Store don't have. All trademarks are owned by their respective owners. AppBrain doesn't offer APKs or binaries, and always lets users install the official version from Google Play or the App Store.

More apps

  • Top Android apps being viewed
  • Inner Explorer HOME
  • Press Under Pressure
  • Hafma Fintech

Android Statistics

  • Android statistics
  • Google Play Developer stats
  • Trending Android Apps
  • Top popular Apps
  • Buy the best Android phone

About AppBrain

  • Contact
  • Privacy
  • Documentation
  • DMCA takedowns
  • Articles
  • Blog
  • Free webpage for your Android app
© 2010-2026 - AppBrain