Comparison

Forest Watcher vs UTM Geo Map Y2Tech

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Forest Watcher

Access global forest change data and alerts offline. Identify areas for investigation, collect field evidence with customizable forms, and make informed conservation decisions. Share data and manage teams for effective forest monitoring.

Highlights
  • 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
Features
Read full description

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.

About

UTM Geo Map Y2Tech

This app provides comprehensive mapping and GIS tools for land surveying, topography, and spatial analysis. It allows for real-time coordinate acquisition, offline GPS functionality, and various measurement tools for distance and area. Advanced modules for contour generation and elevation profiles are available as premium features.

Highlights
  • Real-time coordinate acquisition (UTM, MGRS)
  • Offline GPS functionality
  • Area and distance measurement
  • Spatial analysis (Buffer, Overlay)
  • Coordinate conversion
  • Compass and navigation tools
Features
Read full description

Complete, simple, easy to use & free application for Land Surveying, Topography, Bathymetry & GIS. Suitable for Geodesy Engineering, Civil Engineering, Geology and other disciplines related to maps, coordinates, location, address and spatial analysis. Can be used as a tool in determining position, coordinates, location & address, area & distance measurement, simple spatial analysis such as Overlay, Buffering and finding coordinate location on the field / stake out. Map Coordinates: Can be used to obtain Latitude Longitude, UTM, MGRS and other Coordinate Reference System using EPSG Codes in real time. Plot points complete with coordinate data, addresses, notes, photo and MSL elevation (premium). Export saved points to CSV, DXF or KML files. Offline GPS: Used to get coordinates in an offline state (without internet access), your cellphone will function like a Handheld GPS to get Latitude Longitude coordinates, UTM, MGRS, Elevation (ellipsoid), MSL Elevation (geoid), accuracy and other useful information. Coordinates data can be stored in an unlimited number inside your databases, given notes / labels, photos or exported into CSV files. Contours: Module to generate contours based on number of contour lines, desired elevation or contour interval. This is premium module and need internet connection. Coordinates Converter: To convert coordinates manually from Latitude Longitude to UTM & MGRS and vice versa. It can also be used to convert Addresses to Coordinates (Geocoding). Area/Distance: Used to measure distance and area with various units (support units: m, km, ft, miles, hectare, acre), register lines / polygons, make polygons automatically from measure points using sophisticated Convex Hull, Concave Hull or Trace ID methods. Create polygon holes manually or automatically from covered polygons. Automatically repair invalid geometry / self-crossing polygons, and much more. You can store unlimited lines / polygons in your database, displayed on a map, add photos and labels or exported to CSV or KML files. This module also includes spatial editing algorithms like Snap Nearest, Delete Object Inside or Outside Polygon. Buffer/Overlay: Simple GIS module to perform spatial analysis such as buffering & overlays (and other GIS operations) with several options including Union, Intersection, Difference and Symmetrical Difference. Already support negative buffer for polygons. Find Point: Module to find a location or coordinates in the field / Stake Out using built in GPS and Compass on your cell phone. Compass Map: Module with Maps, Compass, Distance and Azimuth to assist navigation and stake out on the field. Elevation Profile: Premium module to create simple Elevation Profile, this module needs internet connection. Bubble Level module: measuring tool to calculate leveling, degree of slope and percentage of slope. DTM Module: generating TIN (Triangulated Irregular Network / Delaunay Triangulation) DTM from random points or existing contour data, calculating cut and fill volumes (including determining the optimal cut-and-fill reference level where volumes are nearly balanced), performing contour interpolation, etc.. Some other modules. Any suggestions are welcome, please submit via email to utmgeomapapp@gmail.com or write a review. Thanks. Website: https://www.utmgeomap.com Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Forest Watcher4 screens
UTM Geo Map Y2Tech4 screens

Verdict

The call

The clearest difference is rating: Forest Watcher at 5.0 against UTM Geo Map Y2Tech's 3.8. Forest Watcher also leads on in-app purchases (none vs 8) and ads (none vs shown). UTM Geo Map Y2Tech's advantage is update cadence (fortnightly vs every 3 months) and review sentiment (100% vs 80%). On price, ratings volume, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. UTM Geo Map Y2Tech sells 8 in-app purchases, starting at $0.99 per month. Forest Watcher asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Forest Watcher holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews complicate that: 80% of Forest Watcher's written reviews are positive against 100% of UTM Geo Map Y2Tech's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Forest Watcher ships an update every 3 months, UTM Geo Map Y2Tech fortnightly. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
Forest Watcher versus UTM Geo Map Y2Tech: the parameters behind the verdict, then further details
ParameterForest WatcherUTM Geo Map Y2Tech
PriceFreeFree
Rating5.0 (8 ratings) — better3.8 (4 ratings)
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings8 — better4
Update frequencyEvery 3 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better17.6
Further details — not scored
Size79 MB40 MB
Age rating4+4+
DeveloperWorld Resources InstituteYogi Yogantara

Customer experience

Forest Watcher

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

UTM Geo Map Y2Tech

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Forest Watcher

No in-app purchases

8 purchases

UTM Geo Map Y2Tech

Subscriptions8
  • Direction Route (1 Month)$0.991 Month
  • No Ads (1 Month)$0.991 Month
  • Direction Route (3 Months)$1.993 Months
Show 5 more
  • Contours (1 Month)$1.991 Month
  • Elevations (1 Month)$1.991 Month
  • Contours (3 Months)$3.993 Months
  • Elevations (3 Months)$3.993 Months
  • No Ads (1 Year)$9.991 Year

Questions

Is Forest Watcher free?
Forest Watcher is free to download, with no in-app purchases.
Is UTM Geo Map Y2Tech free?
UTM Geo Map Y2Tech is free to download, with in-app purchases available.
Which has better reviews, Forest Watcher or UTM Geo Map Y2Tech?
Forest Watcher is rated higher. Forest Watcher averages 5.0 out of 5 from 8 ratings, while UTM Geo Map Y2Tech averages 3.8 from 4 ratings.
Do Forest Watcher or UTM Geo Map Y2Tech have ads?
UTM Geo Map Y2Tech shows ads; Forest Watcher does not.
Which is updated more often, Forest Watcher or UTM Geo Map Y2Tech?
Forest Watcher ships an update every 3 months, and UTM Geo Map Y2Tech fortnightly. Most recently, Forest Watcher was updated on October 5, 2026 and UTM Geo Map Y2Tech on October 12, 2026.

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