Techduto Maps vs KML Viewer · KMZ File Opener
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Techduto Maps
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Techduto Maps is the offline map for people who work outdoors: drainage, surveying, construction and agriculture. Download your area before you leave. Out in the field the app keeps working with no signal at all — with your GPS position always on screen. OFFLINE MAP OF ALL BRAZIL A vector map of the whole country, ready to use without internet. Download only the piece you need, satellite imagery included, and work all day without a bar of signal. OPEN THE PROJECT YOU ALREADY HAVE Import KML, KMZ, GPX and GeoPDF. The drainage design, the survey, the field boundary map — everything shows up over the satellite image, with each feature name visible on the map. Export to KML to send to your crew or back to the office. MEASURE DISTANCE AND AREA Tap the map to measure right away, or walk the perimeter with GPS on. Results in feet, miles and acres — or meters, hectares and km² if that is how you work. PINS WITH PHOTOS, NOTES AND ELEVATION Mark the culvert, the outlet, the erosion spot. Attach photos, write your note and keep the elevation of the point. Everything stays on the device. PRECISE POINT BY GPS AVERAGING Stand still over the point and let the app average several GPS readings. A far steadier coordinate than a single fix. RECORD YOUR TRACK Turn on recording and the app logs where you walked or drove, with your own distance and time thresholds between points. NAVIGATE TO A POINT Pick a pin or type a coordinate and follow distance and bearing until you arrive. No mapped road required. ALERTS WHEN YOU ENTER OR LEAVE AN AREA Set a radius around a point and get alerted when you cross the line. Useful for preservation areas, easements and property boundaries. PHOTOS IN THE RIGHT PLACE Pick photos from your gallery and the app drops each one at the coordinate where it was taken, using the GPS inside the image itself. REAL ORGANIZATION A library with folders per job or per farm, search by name, filter by file type, and layers you switch on and off as you need them. YOUR WAY Decimal degrees, degrees and decimal minutes, degrees/minutes/seconds. Metric, imperial or nautical. Scale bar, marker size and colors the way you like. Search by address or by typed coordinate. Techduto Maps is free, asks for no sign-up and keeps your data on your own device. The free plan holds up to 10 imported maps. Built by Techduto, which does agricultural drainage in the Brazilian field every day. More at techduto.com.br.
KML Viewer · KMZ File Opener
Easily view, convert, and edit map files like KML and KMZ. Supports various formats and offers tools for inspection, measurement, and GPS tracking. No account is needed.
- View KML and KMZ map files
- Convert between multiple coordinate systems
- Import from various file types and sources
- Edit placemarks, paths, and polygons
- Measure distance and area
- Record GPS tracks
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KML Viewer opens .kml and .kmz map files and shows every placemark, path and polygon on a live interactive map, with tools to inspect, convert and edit your map data. VIEW YOUR MAP • Browse folders and layers, and show or hide each one • Full details for every placemark: coordinates, description, extended attributes • Elevation profile for any path • Multiple base map styles: standard, satellite, topographic and more • Convert coordinates between DD, DMS, DDM, UTM, MGRS, Web Mercator and geo URI, across more than 400 coordinate systems OPEN FROM ANYWHERE • .kml and .kmz files • GPX, TCX and GeoJSON tracks and routes • CSV and Excel spreadsheets with coordinate columns • Shapefile packages, zipped or not • DXF drawings • Photos with embedded GPS location • Import a shared map link, or open from the Files app, Photos, or any app's Share Sheet CONVERT AND EXPORT These tools require an in-app purchase: • Convert to KML, KMZ, GeoJSON, Shapefile, CSV, Excel, GPX, TCX, DXF, SVG or PDF • Convert many files at once • Choose which folders to include, coordinate precision and target coordinate system EDIT AND MEASURE These tools require an in-app purchase: • Search across every placemark by name • Measure distance, area and bearing • Draw lines and polygons, add or move placemarks, edit names and descriptions • Record a GPS track as you move • Add photos pinned to their location • Play back tours • 3D terrain and custom base maps, including your own map package or tile address Open a file from the Files app, Photos, AirDrop or any app's Share Sheet, import a shared map link, or tap "Open File" inside KML Viewer. No account, no login required. Privacy Policy: https://rush.tools/privacy Terms of Use: https://rush.tools/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Techduto Maps at none against KML Viewer · KMZ File Opener's 3. KML Viewer · KMZ File Opener's advantage is update cadence (every 4 days vs every 3 weeks) and device support (4 vs 1). On price, ads 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
Both are free to download. KML Viewer · KMZ File Opener sells 3 in-app purchases, starting at $1.99 per 7 days. Techduto Maps asks for nothing beyond the download.
Techduto Maps ships an update every 3 weeks, KML Viewer · KMZ File Opener every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.
| Parameter | Techduto Maps | KML Viewer · KMZ File Opener |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 3 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.4 | 15.0 — better |
| Further details — not scored | ||
| Size | 57 MB | 48 MB |
| Age rating | +4 | 4+ |
| Developer | Andre Frossard | Rush Tools LLC |
In-app purchases
Techduto Maps
No in-app purchases
KML Viewer · KMZ File Opener
- KML Viewer Pro3 Days trial$1.997 Days
- KML Viewer Pro3 Days trial$14.991 Year
- KML Viewer Pro$29.99
Questions
Is Techduto Maps free?
Is KML Viewer · KMZ File Opener free?
Do Techduto Maps or KML Viewer · KMZ File Opener have ads?
Which is updated more often, Techduto Maps or KML Viewer · KMZ File Opener?
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