iperf2 vs NetSpot

iperf2 has no write-up on Specifiction yet; its figures are above.

NetSpot is a Wi-Fi app for network planning, wireless surveys, analysis, and troubleshooting. Inspector mode shows nearby networks and details including channels, vendors, security type, bands, signal, and noise. Survey mode creates interactive, color-coded heatmaps with more than 20 visualizations and customizable reports. Planning mode supports predictive surveys and network design, including multi-floor planning. Survey data can be exported as PDF or CSV, and heatmaps saved as PNG. Active survey throughput testing can use Iperf 3 or custom speed-test servers. NetSpot says survey, scan, heatmap, network, and location data are processed locally rather than automatically sent to Etwok. Desktop editions support offline activation and can run entirely offline afterward. Optional anonymized, aggregated usage statistics can be disabled in Preferences. The free edition is for personal and evaluation use on macOS and Windows. Paid plans are listed from $199. The seven-day full-featured PRO trial requires a valid corporate email and an explanation for the request.