Wifi Heat Map - Survey

Map WiFi signal strength on your floor plan. Find dead zones, optimize coverage.

Mike Brough · info.wifianalyzer.heatmap

4.5 out of 5 (2 ratings) 100K+ downloads v6.3 3.6 MB Android 9+ PEGI 3 · Everyone

Download APK 3.6 MB All versions

Same certificate as v5.2, which matches Google Play Details

At a glance

Latest version: v6.3 (6003)
Updated: Mar 24, 2026 (7 months ago)
APK size: 3.6 MB
Requires: Android 9+ (API 28)
CPU support: Any (no native code)
Category: Tools (app)
Listed since: Sep 14, 2020 (at least)
Permissions: 7 (1 sensitive)
Website: wifianalyzer.info
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Wifi Heat Map - Survey is an app by Mike Brough in the Tools category, listed since at least September 2020. It has no native code, so it runs on any Android processor.

Since version 3.1, the APK grew from 2.6 MB to 3.6 MB and the minimum Android version rose from 6.0 to 9. It asks for 7 permissions, 1 of them sensitive: precise location. Compared with version 5.2, it adds 1 new permission: “Precise location”.

What's new in v6.3

Minor fixes after a complete app overhaul.

Description

From the listing uploaded by “catappult”.

WiFi Heat Map helps you visualize wireless signal strength across any space — your home, office, warehouse, or shop. How it works: 1. Upload a floor plan image or take a photo of your layout 2. Select which WiFi networks to measure 3. Walk around and hold your finger on each position 4. Watch the heatmap build in real time Key features: • Live heatmap visualization during measurement • Track multiple WiFi networks simultaneously • Project detail with per-network signal previews • Export heatmaps as PNG images or CSV data • Pinch to zoom, drag to navigate your floor plan • Undo measurements, rotate floor plan • Customizable marker size and edge glow effect • Built-in help guide • No account required, no data collected • Works completely offline after WiFi scan Find and fix WiFi dead zones: See exactly where your signal is strong and where it drops. Compare coverage of different access points side by side. Use the data to optimally position your routers and repeaters. Privacy: This app requires location permission solely because Android requires it for WiFi scanning (since Android 6.0). The app does not track, store, or transmit your location. Full explanation is provided within the app. Note on scan speed: Android limits WiFi scans to 4 per 2 minutes. You can disable this in Developer Options for faster measurements. Instructions are included in the app settings. Available in: English, Czech, German, Spanish, French, Italian, Polish, Portuguese, Russian, Slovak

Version history

4 versions are listed, going back to v3.1. Since v4.1 it requires Android 9+.

v6.3 LATEST Mar 24, 2026 3.6 MB TRUSTED v5.2 Sep 4, 2025 3.2 MB TRUSTED v4.1 Sep 2, 2024 3.2 MB TRUSTED v3.1 Jun 3, 2024 2.6 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate issued to “WebProvider.cz” This is the certificate of the Google Play version.
Same certificate as v5.2, which matches Google Play v5.2

Store checks and file details

Developer signature verified Mar 24, 2026
Signed byCN=Adam Haken, OU=dev, O=WebProvider.cz, L=Zeleznice, ST=Czech republic, C=cz
Signing certificate (SHA-1)90:B7:45:6C:A0:5A:28:FD:E6:1F:78:B9:82:E0:F4:CD:3A:A5:98:AE
File MD5e8f9439d73889a0392d30d68ebae2705
Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (7)

Wifi Heat Map - Survey requests 7 permissions, 1 of them sensitive.

Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Change wifi state android.permission.CHANGE_WIFI_STATE
Control vibration android.permission.VIBRATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) info.wifianalyzer.heatmap.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Wifi Heat Map - Survey APK: questions and answers

Is there a version of Wifi Heat Map - Survey for older Android phones?

The current version needs Android 9 or later. Version 3.1 is the newest listed build that installs on Android 6.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 3.1 · All versions

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the Wifi Heat Map - Survey APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. It is signed with the same certificate as version 5.2, whose signature matches the Google Play version. After downloading, check that the file's MD5 is e8f9439d73889a0392d30d68ebae2705.