Techduto Maps vs Geoly

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.

Got a KML or KMZ file your iPhone won't open? Geoly shows KML, KMZ and GeoJSON map files on a real map — the places, routes and boundaries inside, right on your iPhone. Open a file from the Files app, or send it to Geoly from Mail, Messages or another app with "Open in". The map zooms to fit everything in the file, with a list of every feature underneath. • KML, KMZ AND GEOJSON — plain KML, zipped KMZ archives and GeoJSON (.geojson) files, including shapes grouped in MultiGeometry and multi-part GeoJSON. • POINTS, PATHS AND AREAS — placemarks become pins, LineStrings become routes, and Polygons become shaded areas. • FEATURE LIST — see how many points, paths and areas the file holds, and tap any feature in the list to highlight it and centre the map on it. • PINS WITH NAMES — tap a pin to see the placemark's name. • SHARE THE FILE — send the original KML, KMZ or GeoJSON on by AirDrop, Mail, Messages or to Files. Honest scope: Geoly is a viewer. It does not edit files or convert between formats, and it draws every feature in its own colours rather than the file's styles and custom icons. Polygon holes, image overlays and network links are not shown. Files can be up to 40 MB; very dense files are trimmed to the first 150,000 coordinates. Your file is read on your iPhone and is never uploaded. The background map comes from Apple Maps, so map tiles need an internet connection. No account needed. Viewing is free and unlimited. Sharing a file from the app includes 3 free shares; a one-time $4.99 purchase unlocks unlimited shares. No subscription, no ads. Questions: overlapmarr@gmail.com