Map coverage across a space
Best when the question is where exactly the signal is weak, and you want a survey you can walk through and keep.
- Interactive heatmaps and reports
- Multi-floor plans with wall materials
- Predictive planning before a survey
This page refers to NetSpot at netspotapp.com, the Wi-Fi analysis and site-survey tool. NetSpot is a real macOS app with a free plan and a paid Pro edition. WiFi Lens does a narrower job: it turns your Mac into a native Wi-Fi analysis and diagnostics workstation, and its OSS edition is free and open source.
If you want free and open source, WiFi Lens has an OSS edition with public source. If you want floor-plan heatmaps and multi-platform site surveys, NetSpot is the better fit — WiFi Lens does not do that. The two overlap on Wi-Fi visibility, not on the workflow.
Both tools make Wi-Fi easier to see, but they answer different questions.
Best when the question is where exactly the signal is weak, and you want a survey you can walk through and keep.
Best when you want to understand channel congestion, connection health, network failures, or roaming from the Mac you are actually using.
Only the differences that matter when you are picking one for a Mac.
| Need | NetSpot | WiFi Lens |
|---|---|---|
| Platforms | macOS, Windows, Android, iOS | macOS 14+ |
| Free edition | Free plan available; Pro is a paid edition | OSS edition free, with public source |
| Source code | Proprietary | Public for the OSS edition |
| Floor-plan heatmaps | Yes — multi-floor surveys with wall materials | Not the focus |
| Channel visibility | Channel graphs and network lists | Tri-band spectrum with channel scoring and recommendations |
| Connection troubleshooting | On macOS and Windows | Connection dashboard plus staged this-Mac / LAN / Internet checks |
About this comparison. NetSpot details come from netspotapp.com and were checked on 2026-09-13: the site lists macOS, Windows, Android, and iOS support, survey and heatmap features, a free plan, and a paid Pro edition. No prices are quoted here because the product site does not state them on the page this was checked against. NetSpot is independent and is not affiliated with WiFi Lens or Shiina Labs. Product capabilities and pricing can change — check NetSpot's own site before deciding.
If the question is where coverage is weak across a building, and you want heatmaps, floor plans, and reports on more than one platform, NetSpot is built for that.
If the question is why this connection is slow, crowded, unstable, or roaming badly, WiFi Lens gives you the desktop diagnostics to investigate it directly — free and open source.
Download for macOSInspect the air, diagnose the connection, and verify what changes when you move.