GIStance vs WiFi Coverage Survey & Heatmap

GIStance turns an iPhone plus a connected GNSS receiver into a survey-grade field capture system for infrastructure, utility and construction crews. Centimeter-level positioning, georeferenced photo documentation, and 3D LiDAR scanning — captured on site, structured for the office. Built for FTTX rollout, utility networks and construction documentation, GIStance replaces the paper-notes-plus-consumer-camera workflow with a single tool that records where every asset is, what it looked like, and when it was captured. Precise positioning • Connect an external GNSS/RTK receiver for centimeter-level accuracy • Live fix status and accuracy readout before you record a point • Positions attached to every photo, measurement and scan Georeferenced photo documentation • Capture site photos with coordinates, timestamp and accuracy embedded • Tie documentation to project sections and construction phases • Consistent, auditable evidence for as-built records and billing 3D LiDAR scanning • Capture point clouds and meshes of trenches, structures and installations • Scans stored as measurement artifacts alongside points and photos Built for the field • Works with mapped basemaps for on-site orientation • Fast capture flow designed for gloved hands and daylight screens • Data queued and synced when connectivity allows Part of a documentation ecosystem Field captures sync to the FotoGIS asset hub and become available in the GISdoc office platform for project tracking, phase completion, plan-vs-actual comparison and report generation. What the crew captures on site is what the office works with — no manual re-entry. Who it's for • Field surveyors and rollout crews • Utility and network operators • Construction documentation and as-built teams Requirements GIStance requires a compatible external GNSS receiver for survey-grade accuracy and an active GISdoc/FotoGIS account. It is a professional B2B field tool, not a standalone consumer app.

Where should the router go? WiFi Coverage Survey answers that by measuring, not guessing — with a coverage heatmap drawn over your own floor plan, a ranked report of every spot, and a separate internet speed test. Start a recording, walk your home, and name the spots you care about — the desk, the couch, the far bedroom. The app measures continuously while you walk and produces a report ranking every spot, so you can see exactly where coverage falls apart and which access point is responsible. WHY NOT JUST A SIGNAL BAR iOS does not give apps the raw signal strength, and even where it is available it is a poor predictor: Wi-Fi hides a weakening link behind retransmission, so everything looks fine right up until the connection collapses. WiFi Coverage Survey instead measures the things that degrade early — loss on large frames, TCP retransmission and failed connections, tail latency, throughput, and the negotiated PHY mode — and combines them into a single 0–100 score. WHAT YOU GET • A live score, dial and chart while you walk • Mark This Spot — captures the 10 seconds before you press, so typing a name never pollutes the measurement • A ranked table of every spot, best to worst • Per access point breakdown: which node served which part of the walk, so you know which one to move • Outage and handover detection • A floor plan you sketch yourself, with your marked spots on it and a coverage heatmap over the walls • Placement advice based on the recording • CSV and JSON export • History, so you can compare before and after moving the router INTERNET SPEED TEST A separate tab measures the line itself rather than the Wi-Fi: download and upload over parallel streams, idle latency and latency under load, and which Cloudflare edge is serving you. Runs are kept in a history on the device so you can compare them. Five tests a day. PRIVACY The survey is measured against your own router and stays on your device — nothing is uploaded. The internet speed test is the one exception: it exchanges traffic with our own test server, and only when you start it. Location permission is requested only because iOS will not reveal the Wi-Fi network name to an app without it — your location is never recorded or shared. NOTES Recording needs the screen on, because iOS does not allow Wi-Fi sampling in the background. Measurement is deliberately intensive, so expect noticeable battery use during a walk. The survey's throughput figure is relative to your own router and is not a measure of your internet connection — the speed test tab does that.