survAIor vs GNSS Survey Logger

survAIor is a professional surveying calculator designed for engineers, surveyors, and field technicians who need accurate results on-site without carrying a dedicated calculator. SURVEYING CALCULATORS Traverse — Enter a start coordinate and a series of bearing and distance legs. survAIor applies the Bowditch correction and returns adjusted easting/northing coordinates for every station, along with linear misclosure and precision ratio. Area — Calculate the area and perimeter of any polygon by entering coordinate points. Results are returned in both square metres and hectares using the shoelace formula. Curve — Solve horizontal curve elements from any of four input combinations: Δ+R, Δ+T, Δ+L, or R+T. Returns radius, tangent length, arc length, external distance, middle ordinate, long chord, and optional BC/EC chainages. Volume — Compute earthwork cut and fill volumes from cross-sectional areas using the average-end-area method. Returns total cut, total fill, net volume, and a per-interval breakdown. GPS CAPTURE Use your iPhone's GPS to capture survey points in the field. Live coordinates are converted to UTM eastings and northings in real time and displayed on an interactive map. Named points are saved to your device and can be exported as a CSV with full easting, northing, elevation, latitude, longitude, and timestamp columns. PROJECT MANAGEMENT Organise your work into projects. Each project stores its calculations and field notes together, making it easy to manage multiple jobs at once. Return to any saved calculation to view, edit, and re-export results at any time. FIELD NOTES Add titled, free-text field notes to any project — record observations, site conditions, or instructions alongside your calculations. EXPORT Every calculator and the GPS capture tool supports one-tap CSV export via the iOS share sheet, ready for import into Excel, CAD, or GIS software. PRIVACY All data is stored locally on your device. survAIor does not collect analytics, display advertising, or transmit any data over the internet.

GNSS Survey Logger is a simple field utility for saving GPS/GNSS-based measurement points and generating clean field reports directly from your iPhone. The app helps you record important location data during field work, site checks, surveys, technical visits, inspections, or documentation tasks. Main features: • Save measurement points with timestamp • Record latitude and longitude • Show coordinates in decimal and DMS format • Display altitude and accuracy values • Show local time and UTC time • Calculate visible GNSS satellite count from orbital data • Export saved points into a PDF Field Report • Share or save the report using the iOS share sheet Each saved measurement point contains the key data needed for later documentation, including coordinates, timestamp, accuracy, altitude, and visible GNSS satellite count. GNSS Survey Logger is designed for quick field logging, technical documentation, and simple survey-style reporting. Note: Visible satellite count is calculated from public orbital data based on current location and time. It is not raw receiver diagnostic data from the iPhone GNSS chipset.