Signl - WiFi Analyzer & mapper
Internet Heatmap & 3D Home Map
About
Visualize your home Wi-Fi signal strength in 3D using your phone's camera or imported floor plans. Identify dead zones and optimize router placement for a flawless connection throughout your home.
What's New in Signl
2.3
September 8, 2026
Now you can scan your home without a single interruption. There's now a lifetime option. Signl explains what it needs, and why, before asking for it. Easier onboarding steps. Readings of speed and latency are sharper. Your coverage map appears faster once you stop walking. Walk your home. Watch the signal paint itself onto your rooms. Find the exact spot where it dies.
MoreSubscription plans
Signl Pro — Yearly
Your full WiFi map, dead zones and repeater spot.
FAQ
What is Signl?
Signl is a utility app that helps you analyze and optimize your home Wi-Fi network. It visualizes your Wi-Fi signal strength in 3D on a map of your home, allowing you to identify and fix dead zones.
How does Signl map Wi-Fi signals?
Signl uses your iPhone's LiDAR camera to scan your rooms and create a 3D map. Alternatively, you can import a floor plan image or PDF if your device lacks LiDAR.
What are the subscription options for Signl Pro?
Signl Pro offers auto-renewable subscriptions for $4.99 per week or $29.99 per year. Payments are charged to your Apple Account, and subscriptions can be managed or canceled in your App Store account settings.
Is Signl available on Android?
Based on the provided data, Signl is currently only supported on iPhones.
How often is Signl updated?
The latest version of Signl is 2.0, which was last updated on August 14, 2026. This indicates a recent update, suggesting the app is actively maintained.
What is the age rating for Signl?
Signl has an age rating of 4+, making it suitable for a wide range of users.
Does Signl have ads?
No, Signl does not contain advertisements. The app is free to download and offers optional in-app purchases for its Pro features.
What are the benefits of using Signl Pro?
Signl Pro unlocks advanced features for Wi-Fi analysis and optimization, including 3D scanning, floor plan import, detailed Wi-Fi coverage mapping, and network diagnostics to help you achieve a flawless connection.