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Main Project Information
Goal Create global map of cell phone and Wi-Fi access points.
Task Download android app, automatically collect/share data.
Where Global, anywhere on the planet

With your help, OpenSignalMaps is creating a comprehensive database of cell phone towers, cell phone signal strength readings, and Wi-Fi access points around the world. This data is collected via an Android application and uploaded to the project's servers, taking care to use as little processing power and battery life as possible.

You can use the project website to browse the data they've collected, including heat maps that show exactly how strong signal is in any particular area, as well as all the nearby towers for your carrier. And don't worry -- the data is stripped of any identifying information and available on a graphical interface to enable you to make sense of the raw data.

How to Join

Download the Android app at

This will let you:
- Map nearby cell phone towers and the active tower
- View signal strength readings and tower direction
- View signal tower radar
- Upload signal strength information to the database (optional)

Social Media
App URL,
Required Gear

Cell phone with Android-based operating system

Ideal Age Group Elementary school (6 - 10 years), Middle school (11 - 13 years), High school (14 - 17 years), College, Graduate students, Adults, Families
Spend the Time outdoors
Type of Activity Emergency Response
Tags at home, at school, emergency response, in the car, smart phone
Project Updated 05/23/2018