Mapio.

Now opens TIF, TIFF and GeoTIFF as well as PDF: the drone orthomosaic or your agronomist's image, with the same tools and the same GPS as always.

Mapio turns your phone into the GPS you take to the field. Open a georeferenced map — PDF or GeoTIFF — and you will see yourself standing on it, in real time, with no signal needed.

WHAT IT OPENS Georeferenced PDFs (TerraGo GeoPDF and ISO 32000 PDFs with georeferencing), and TIF, TIFF and GeoTIFF: the drone orthomosaic, the agronomist's image, the survey map. Both work the same, with the same tools.

MEASURE Distance and area by tapping the screen, area by walking the field with GPS, and center pivots by center, radius and fraction of the circle. In hectares, acres, meters or feet — your choice.

MARK Points with a name, a note and photos. Folders and tags so nothing gets lost between seasons. Export as GPX and CSV.

SAVED FIELDS AND PIVOTS Save a field once and use it on every map you own. Import the ones you already have as KML, KMZ or shapefile, and export them to QGIS, Auravant or the planter monitor.

ROTATIONAL GRAZING Split the field into equal strips, rotate the fence line and read the instant stocking rate in head per hectare and liveweight per hectare.

SATELLITE ZONING Up to 5 years of Sentinel-2 imagery analyzed for your field, with the headland separated from the center and stability across seasons. Plus variable-rate prescriptions: several products per operation, the rate for each zone and the total to buy.

WHAT NEEDS A SIGNAL AND WHAT DOES NOT Everyday use works offline: opening your maps, locating yourself, measuring, paddock planning, marking points and exporting. The online satellite basemap and satellite zoning need data, since zoning downloads Copernicus/Sentinel-2 imagery: run it before you head out and review it later, already downloaded.

MAPIO PRO The free version includes opening maps, locating yourself, measuring, marking points, saving fields and the online satellite map. Mapio Pro adds satellite zoning, variable-rate prescriptions, grazing paddock planning, import and export, and an ad-free map.

• Mapio Pro Monthly — 1 month — US$ 0.99 • Mapio Pro Yearly — 1 year — US$ 7.99

Auto-renewable subscription. Payment is charged to your App Store account at confirmation of purchase. It renews automatically unless you cancel at least 24 hours before the end of the current period; your account is charged within 24 hours prior to the renewal. You can manage or cancel it in your account settings after purchase.

PRIVACY No accounts, no sign-up and no servers of ours. Your location is processed on the phone and never transmitted. The app's data is excluded from iCloud backup, so it is not uploaded to the cloud — the trade-off is that when you switch phones you have to import your maps again. The free version shows Google AdMob ads, and where the law requires it the app asks for your consent before the first one; you can change that answer in Settings.

Privacy policy: https://sites.google.com/view/mapio-privacy Terms (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Sentinel-2 imagery from the Copernicus programme (EU/ESA). Street maps © OpenStreetMap contributors.