Comparison

WiFi Heatmap vs Signl

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

WiFi Heatmap

Features
Read full description

WiFi slow in some rooms? Dead zones in your home but you don’t know why? Overview Import your home floor plan and measure WiFi signal strength at different locations. Visualize coverage directly on the map and quickly identify weak spots. Perfect for optimizing router placement and improving home network performance. Key Features Measure WiFi signal strength (RSSI) Record signal data at multiple locations Plot measurements on your floor plan Compare signal strength across rooms Mark router positions Visualize coverage like a heatmap Use Cases Home WiFi optimization Router / mesh placement Moving into a new house Checking rental WiFi quality Notes WiFi signal can be affected by walls, furniture, and interference. Results are for reference only. Permissions Location permission may be required to access WiFi information depending on your device settings.

About

Signl

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.

Highlights
  • 3D Wi-Fi signal visualization
  • LiDAR room scanning
  • Floor plan import (photo/PDF)
  • Wi-Fi coverage mapping
  • Network diagnostics
  • Router/extender placement optimization
Read full description

See your WiFi painted onto a 3D map of your own home. Walk through your rooms with your iPhone. Signl measures the real signal in each one and shows you exactly where it drops, and where to move your router to fix it. WHAT YOU GET - 3D scan: walk through your home and watch the model build itself. LiDAR is used on iPhones that have it. - No LiDAR? Import a floor plan. Drop in a photo or a PDF and Signl reads the rooms. - Coverage map: every room measured and scored, weak spots marked where they actually are. - Live test: real speed and latency, measured from where you stand. Other apps give you a number. Signl gives you a place. Each measurement sits on the room it was taken in, so you know which wall is in the way and where the router belongs. YOUR SCANS STAY ON YOUR IPHONE The 3D model of your home never leaves your device. Nothing is stored on our servers. Floor plan photos are analyzed, then discarded. FREE AND PRO Scanning your home and building the 3D model are free. Signl Pro unlocks the full coverage heatmap, scores for every room, router placement recommendations and shareable reports. Signl Pro auto-renewable subscriptions: Yearly ($34.99/year) or Weekly ($5.99/week). A Lifetime purchase is also available. Payment will be charged to your Apple Account at confirmation of purchase. Your subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings at any time. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://signlwifi.com/privacy

Screenshots

WiFi Heatmap4 screens
Signl4 screens

Verdict

The call

The clearest difference is price: Signl at Free against WiFi Heatmap's $4.99. Signl also leads on iOS requirement (18.0 vs 26.2). WiFi Heatmap's advantage is in-app purchases (none vs 3). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Signl is free to download; WiFi Heatmap costs $4.99 up front. Signl sells 3 in-app purchases, starting at $6.99 per 7 days. WiFi Heatmap asks for nothing beyond the download.

Scorecard3 real differences · 7 level
WiFi Heatmap versus Signl: the parameters behind the verdict, then further details
ParameterWiFi HeatmapSignl
Price$4.99Free — better
Rating—3.0 (7 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—7 — better
Update frequency—Weekly
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS26.218.0 — better
Further details — not scored
Size3 MB30 MB
Age rating4+4+
DeveloperShanghai Aisujiao Network Technology Co., Ltd.Victor Backouche

In-app purchases

None

WiFi Heatmap

No in-app purchases

3 purchases

Signl

Subscriptions2
  • Signl Pro — Weekly$6.997 Days
  • Signl Pro — Yearly$29.991 Year
One-time1
  • Signl Pro Lifetime$34.99

Questions

Is WiFi Heatmap free?
WiFi Heatmap costs $4.99, with no in-app purchases.
Is Signl free?
Signl is free to download, with in-app purchases available.
Do WiFi Heatmap or Signl have ads?
Neither WiFi Heatmap nor Signl shows ads.

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