topoXpress vs TopoXY

topoXpress provides the following features: • Multiplatform design: the same software with the same rich functionality for both GIS data collectors and Surveyors on iOS & macOS. • Handling and displaying large spatial datasets (raster and vector). • Responsive and intuitive user interface: easy to learn and use, automatic adjustment to different screen sizes, orientations, and resolutions of mobile (iPhone, iPad) and desktop devices. • Online and offline operation: online data sources (Cloud storage, TMS, WMS, KML), offline raster datasets (jpeg, ecw, ers, tiff, png, lan, bil, ENVI bsq), offline vector datasets (shp, dxf, map, GeoJSON, mif, txt, crd, dat, dbf, tab, mid). • Powerful GIS visualization functions: thematic mapping, transparency, labeling, query, layer groups, vector symbols, line types, fill types, event mapping. • Productive data collection: templates, surveying, stakeout, CoGo (Coordinate Geometry), forms, lists, calculated fields, GIS editing functions, sampling tool, and more. • Collaborative mapping for professional users through the topoXpress cloud service. • Extensive support of GNSS receivers through TCP port & Bluetooth, projection systems, geoids, shift grids. Bluetooth Rangefinder support for CoGo tasks. The app can be used in many different sectors: • Field data collection and inspection • Land Surveying • Topographic mapping • Forestry • Farm mapping • Utility mapping and inspection • Archeology *** NOTE: topoXpress offers all specified GIS functions free of charge. However, loading more than 10.000 records, saving and exporting your job can be done through our cloud service. Please visit our website for further details: https://topoXpress.com **NOTE ON BATTERY USAGE: The app may dramatically decrease battery life during the use with large spatial datasets. The app supports optional background location services, which can may cause a faster battery drain than usual.

TopoXY converts coordinates between WGS84 and the national grids of Romania, Poland, Czechia, Slovakia, Italy and Germany, for surveyors, civil engineers and GIS professionals. Pick your country once. TopoXY loads the right coordinate reference system and keeps it for every conversion, calculation and map you open. SUPPORTED COORDINATE SYSTEMS • Romania: Stereo 70, EPSG:3844 • Poland: PUWG 1992, EPSG:2180, and PUWG 2000 zones 5 to 8, EPSG:2176 to 2179 • Czechia and Slovakia: S-JTSK / Křovák, EPSG:5514 • Italy: Gauss-Boaga zones 1 and 2, EPSG:3003 and 3004, plus ETRS89 / UTM 32N and 33N • Germany: ETRS89 / UTM 32N and 33N, EPSG:25832 and 25833 CONVERSION WITHOUT SIGNAL Conversions run on your iPhone through the PROJ library, the engine behind professional desktop GIS. They need no signal and no account, which matters on a site without coverage. The map and the elevation lookups use online services, so they send the position you are viewing. WHAT YOU CAN DO • Convert between your national grid and WGS84, in both directions • Enter several points and convert them together, or import them from a text file • Measure distance and azimuth between two points • Calculate the area and perimeter of a set of points • See every point on the map: standard, hybrid or satellite • Navigate to any point with Apple Maps or another navigation app on your iPhone • Read the slope between two points, in degrees and percent, with their elevations filled in from terrain data • Look at the site in satellite view ABOUT ACCURACY The app shows the accuracy for your country with every conversion result. TopoXY uses the standard EPSG datum transformation for each grid, without a correction grid: about 1 m for Poland, Czechia, Slovakia and Germany, about 3 m for Romania and about 4 m for Italy. That is fine for field navigation and GIS work, not for cadastral or legal surveys. Check a control point you already know before you rely on any tool, this one included. BUILT FOR THE FIELD Seven languages: English, Romanian, Polish, Czech, Slovak, Italian and German. Dark mode. Location is used only when you tap a location button. TOPOXY PRO Conversions, measurements and the slope calculation are part of TopoXY Pro, which also removes ads. The map, the satellite view and navigation to a point are free. SUBSCRIPTION DETAILS TopoXY Pro is an auto-renewing subscription, weekly or monthly. New subscribers start with a 3 day free trial. After the trial it renews at the price shown in the app for your region, charged to your Apple Account at confirmation of purchase. It renews automatically for the same price and period unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel any time in Settings, tap your name, then Subscriptions. Any unused portion of a free trial is forfeited when you buy a subscription. Privacy Policy: https://topoxyapp.com/privacy.html Terms of Use: https://topoxyapp.com/terms.html EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/