WiFi Heatmap vs Signl
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WiFi Heatmap
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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.
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.
- 3D Wi-Fi signal visualization
- LiDAR room scanning
- Floor plan import (photo/PDF)
- Wi-Fi coverage mapping
- Network diagnostics
- Router/extender placement optimization
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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
Verdict
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
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.
| Parameter | WiFi Heatmap | Signl |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | — | 3.0 (7 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 26.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Shanghai Aisujiao Network Technology Co., Ltd. | Victor Backouche |
In-app purchases
WiFi Heatmap
No in-app purchases
Signl
- Signl Pro — Weekly$6.997 Days
- Signl Pro — Yearly$29.991 Year
- Signl Pro Lifetime$34.99
Questions
Is WiFi Heatmap free?
Is Signl free?
Do WiFi Heatmap or Signl have ads?
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