NetLens

What it does - AR heatmaps - walk your home or office and watch the signal heatmap flow across the floor in real time, plus signal orbs you can literally walk through - Floorplan surveys - import a floorplan and build a room-by-room heatmap of your whole place. No camera, no AR required. - Live tools - signal meter, per-channel congestion graphs (see which channels your neighbours are clogging), an access-point browser, connection details, and a built-in speed test. All unlimited, on every tier. - Reports - export as PNG or CSV, or a full PDF coverage report - Phones and tablets, 11 languages Privacy: - All scan data stays on your device. No account, no cloud, no sign-up. - Scans, photos, and exports never leave your phone unless you share them yourself. Free vs Pro The free tier is a real tool, not a demo - you can survey a space start to finish without paying: 1 project, 3 saved scans, 2 floorplans, and 5 Quick Scans a day, with PNG and CSV export plus a full in-app preview of the PDF report. Every live tool stays unlimited. It shows a banner ad on the browsing screens and a small watermark on PNG exports - you can clear that on an export by watching a short ad. Pro is a one-time purchase, no subscription (about US$7): unlimited projects, scans and floorplans, the professional PDF report and full CSV export, and no ads or watermark anywhere. Anything you've already made stays fully viewable and exportable either way - nothing you create gets locked behind an upgrade later. Requirements - Android 13+. The AR modes need an ARCore-supported device; the Floorplan tool works on any supported phone or tablet. The Play page tells you if yours is compatible.