TopoXY vs Geo XY Pointer

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/

Holding a 1927-era plat, a deed description, or an old agency drawing? Those coordinates are NAD27 State Plane, not what your phone reports - and the difference on the ground is tens of metres. This app shows both at once. SPCS83 and UTM on top, NAD27 State Plane in US survey feet and NAD27 UTM right underneath, updating live as you walk. The conversion uses NADCON, the National Geodetic Survey's own grid, so the number matches the drawing rather than approximating it. Try all features completely free for the first month. [ Key Features ] - Real-Time Coordinate Display: Simultaneously shows Latitude/Longitude (WGS84), UTM, and MGRS. - Legacy Grids: NAD27 State Plane and NAD27 UTM via NADCON, for checking older plats, deeds and boundary work. - Enter a Coordinate, Go There: Type or paste a grid coordinate and the map jumps to it. - Multiple Points at Once: Paste a list of coordinates, drop them together, and step through them one by one. - Feet or Metres: Switch between metres, US survey feet and international feet - every readout and every entry follows. - Distance and Bearing: Range and direction from where you stand to the pin, with live GPS accuracy. - CSV Export: Send saved points out as CSV for your office software. - Street View: Jump from any point straight to Google Street View. - Pin Function: Tap the map to drop a pin and read its coordinates and address. - Favorites Manager: Manage multiple job sites and reference points efficiently. - Address Lookup: Shows the street address of your location or any pin. - Auto-Detect Local Coordinate Systems: Automatically identifies and displays the correct local grid and zone worldwide. - One-Tap Copy: Copy retrieved coordinate data to your clipboard with a single tap. - Share & Report: Capture screenshots containing coordinate data to easily share or save via email and messaging apps. - Transparent Map Overlay: Seamlessly layer satellite imagery with OSM (OpenStreetMap) to read terrain, vegetation, roads, and facilities at once. Ideal for construction, civil engineering, environmental surveys, forestry, mountain rescue, and any scenario demanding precise location data. [ Supported Local Coordinate Systems — 40+ countries worldwide ] Asia & Oceania: Japan (JPRC Zones 1-19), South Korea (Korean 2000), China (CGCS2000), Taiwan (TWD97), Hong Kong (HK1980), Malaysia (GDM2000), Singapore (SVY21), Indonesia, Vietnam, Thailand, Philippines, Bangladesh, Pakistan, Australia (GDA2020/MGA2020), New Zealand (NZTM2000). Europe: United Kingdom (British National Grid), Ireland (ITM), France (Lambert-93), Germany (ETRS89/UTM), Netherlands (RD New), Switzerland (LV95), Belgium (Lambert 2008), Luxembourg (LUREF), Italy (Gauss-Boaga), Portugal (TM06), Greece (Greek Grid), Poland (PUWG 2000), Czechia & Slovakia (S-JTSK / Křovák), Hungary (EOV), Romania (Stereo 70), the Nordics (Denmark, Sweden, Finland, Norway, Iceland), the Baltics (Estonia, Latvia, Lithuania), Russia, Turkey. Middle East, Africa & South America: Israel (ITM), Egypt, Qatar (QND95), South Africa, Nigeria, Argentina (POSGAR 2007). North America: United States — all 50 states (NAD83 State Plane Coordinate System / SPCS83), e.g. California, Texas, New York, Florida, Alaska, Hawaii; Puerto Rico. [ Legacy Grids on Board - converted with each country's official grid shift ] NAD27 State Plane - NAD27 UTM - OSGB36 - DHDN / Gauss-Kruger - NTF / Lambert - CH1903 / LV03 - MGI / Austria GK - Belge 1972 / Lambert 72 - Amersfoort / RD New - ED50 - Datum 73 - HD72 / EOV - S-JTSK / Krovak - ISN93 - LKS-92 - AGD66 / AMG - NZGD49 / NZMG - SAD69 - Tokyo Datum - System 34 / System 45 (DK) Canada (NAD83 MTM) - India (Survey of India zones) - everywhere else: UTM / MGRS worldwide. Note: current grids are projected from WGS84 without a datum shift (up to ~1–2 m); not for survey work. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://qconp.com/privacy