# Forest Watcher — Monitor forests anywhere > Offline mobile tool for monitoring forest change and collecting field data. (iPhone/iPad app by World Resources Institute.) - Source: https://appshunter.io/ios/app/forest-watcher/id1277787116 (this page in markdown: same URL + `.md`) - Developer: [World Resources Institute](https://appshunter.io/developer/351884757) - Category: Navigation - Price: Free - Rating: 5.00/5 from 8 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 59 MB - Languages: American English, French (France), Indonesian, European Portuguese, European Spanish - Released: 2017-09-18 - Data updated: 2026-07-30 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/forest-watcher/id1277787116/reviews.md ## What is Forest Watcher? 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. Features: * 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 forestwatcher.globalforestwatch.org If you have any issues downloading or using the app, please reference our “how-to” materials. If the issues persist, please contact us at forestwatcher@wri.org. Any other questions or feedback, please contact us at forestwatcher@wri.org. Full terms and conditions can be found at http://www.globalforestwatch.org/terms. ## Key features - Offline forest change data access - Designate areas of interest - Collect field data with forms - Overlay contextual layers - Route tracking for investigations - Share alerts and data ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/forest-watcher/id1277787116/reviews.md ### 1/5 — Travado *2022-01-29* Logo de início solicita autorização para localização e em seguida trava o App ### 5/5 — Top Notch for the Casual Forest Watcher *2017-09-28* Simple and clear. Useful tool for monitoring - even for the casual observer. ### 5/5 — Amazing app for forest monitoring *2017-09-27* 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! ### 5/5 — Great app by WRI *2017-09-27* WRI has built a meaningful and powerful tracking tool. It's great to be able to track forest progress (or deforestation ). ### 5/5 — Great offline tool for monitoring forests *2017-09-26* Same powerful data as Global Forest Watch, but in a mobile app with clean interface, and easy to use. ## Frequently asked questions about Forest Watcher ### What is Forest Watcher? Forest Watcher is a mobile application that provides offline access to global forest change data and alerts from Global Forest Watch. It allows users to identify areas of change, collect field evidence, and make informed conservation decisions. ### Can I use Forest Watcher offline? Yes, Forest Watcher is designed for offline use, allowing you to access forest change data and collect information even without an internet connection. ### How much does Forest Watcher cost? Forest Watcher is available for free. There are no costs associated with downloading or using the core features of the application. ### What devices does Forest Watcher support? Forest Watcher is currently supported on iPhones. Check the app store for the latest compatibility information. ### How often is Forest Watcher updated? The latest version of Forest Watcher is 3.3.1, last updated on August 28, 2025. Updates typically include new features, bug fixes, and performance improvements. ### What is the age rating for Forest Watcher? Forest Watcher has an age rating of 4+, making it suitable for a wide range of users interested in environmental monitoring. ### How do I get help with Forest Watcher? If you encounter issues, you can reference the 'how-to' materials within the app or contact the support team directly at forestwatcher@wri.org for further assistance. ### Does Forest Watcher have ads? No, Forest Watcher does not contain advertisements. The app is ad-free, allowing for an uninterrupted user experience focused on forest monitoring. ## Version history (last 5 releases) ### 3.3.4 — 2026-07-28 Updated React Native Navigation and other dependencies to successfully build with Xcode 26.6 + iOS 26.5 SDK. ### 3.3.1 — 2025-08-28 We’re always making changes and improvements to the Forest Watcher app. In this release, we have done some general maintenance and bug fixes. ### 3.3 — 2024-07-08 We’re always making changes and improvements to the Forest Watcher app. In this release, we have done some general maintenance and bug fixes ### 3.2 — 2024-05-22 We're always making improvements to the Forest Watcher app. In this release we've fixed some bugs and completed general maintenance. ### 3.1.3 — 2023-06-19 We’re always making changes and improvements to this app. In this release, we have done some general maintenance and bug fixes. ## Apps similar to Forest Watcher | App | Rating | Price | Category | | --- | --- | --- | --- | | [VRAFY Sampling](https://appshunter.io/ios/app/vrafy-sampling/id6746164921) | — | Free | Navigation | | [Wildfire App－Fire Tracker・Maps](https://appshunter.io/ios/app/wildfire-appfire-trackermaps/id6739967344) | 4.8 (50) | Free | Navigation | | [onX Hunt: GPS Hunting Maps](https://appshunter.io/ios/app/onx-hunt-gps-hunting-maps/id672902340) | 4.9 (274,256) | Free | Navigation | | [MineAR: Augmented Reality Map](https://appshunter.io/ios/app/minear-augmented-reality-map/id1412905489) | 5.0 (5) | Free | Navigation | | [NRDS Mobile Mapping ('Āina)](https://appshunter.io/ios/app/nrds-mobile-mapping-aina/id1359548145) | 4.9 (7) | Free | Navigation | | [IGNIS \| Wildfire Operations](https://appshunter.io/ios/app/ignis-wildfire-operations/id1663559375) | 4.8 (50) | Free | Navigation | ## More apps by World Resources Institute - [TerraMatch](https://appshunter.io/ios/app/terramatch/id1480375362) - [RestoreForward](https://appshunter.io/ios/app/restoreforward/id6443850445) All apps by World Resources Institute: https://appshunter.io/developer/351884757 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-30.*