Forest Watcher 4+

Monitor forests anywhere

World Resources Institute

Designed for iPhone

    • 5.0 • 8 Ratings
    • Free

iPhone Screenshots


Forest Watcher is a mobile application designed to bring the dynamic online forest monitoring and alert systems of Global Forest Watch (GFW) offline and into the field. Forest Watcher allows users to easily access GFW’s forest change data on any mobile device, navigate to areas of detected change, and collect information about what they find, regardless of connectivity.

This app provides an affordable and easy-to-use solution to quickly identify areas for patrols or field investigations, collect evidence about forest changes from the field, use the data that’s collected to make evidence-based management and conservation decisions, and investigate remote sensing products in the field.

* Designate areas of interest to monitor, up to 20,000 sq km
* Store various satellite-based forest change data, such as near-real-time deforestation alerts on your mobile device
* Overlay contextual layers, such as Protected Areas and Timber Concessions, or upload other custom datasets
* Investigate alerts in the field and collect information (including GPS points and photos) through built-in and customizable forms
* Review, analyze, and download data collected with the app
* Route tracking to investigate a deforestation alert
* Share alerts, areas, routes, reports, contextual layers and basemap tiles or all app content at once.
* Manage a team and more through the supplementary desktop application at

If you have any issues downloading or using the app, please reference our “how-to” materials. If the issues persist, please contact us at

Any other questions or feedback, please contact us at

Full terms and conditions can be found at

What’s New

Version 3.1.3

We’re always making changes and improvements to this app. In this release, we have done some general maintenance and bug fixes.

Ratings and Reviews

5.0 out of 5
8 Ratings

8 Ratings

karla26 ,

Amazing app for forest monitoring

This app brings GFW to your phone to make monitoring forests easy and efficient. It's really helpful to see deforestation and fire alerts in my area and be able to submit reports with data from patrols. Great job WRI!

J8and0aon ,

Great offline tool for monitoring forests

Same powerful data as Global Forest Watch, but in a mobile app with clean interface, and easy to use.

mc in CR ,

Great app by WRI

WRI has built a meaningful and powerful tracking tool. It's great to be able to track forest progress (or deforestation ).

App Privacy

The developer, World Resources Institute, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Location
  • User Content

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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