WiFi Heat Map & Analyzer6.4.2 - App Store

Find your home WiFi dead zones in under 10 minutes, using nothing but your iPhone.
Walk from room to room, tap to measure, and watch a color map of your actual WiFi
performance build itself - speed and latency, where you really live.
No subscription. No ads. No account. One purchase, yours forever.

WHAT YOU CAN ACTUALLY FIND OUT
- Which rooms are slow, and how slow, in numbers you can act on
- Whether the problem is your WiFi or your internet connection
- Where to put a mesh node, an extender or the router itself
- Which of the devices on your network is eating your bandwidth
- What every IoT device on your network is broadcasting about itself

HOW IT WORKS
1. Pick one of the ready-made floor plans, or use a photo of your own plan
2. Walk to a spot, tap once - the app measures throughput and latency there
3. Repeat for each room. The heat map builds as you go
4. Save the finished map to your photos, to compare after you move the router

Step-by-step mode does the setup for you: no target to choose, no protocol to
configure, no documentation to read. The advanced interface is still there when
you want full control.

NO EXTRA HARDWARE. NO SUBSCRIPTION.
Professional WiFi surveys need an Ekahau Sidekick or a WLAN Pi. This app needs
your iPhone. And unlike almost every other WiFi analyzer on the App Store, there
is no weekly plan, no annual plan, and no ads - you buy it once.

ALSO A COMPLETE NETWORK TOOLKIT
- Scan every device on your LAN, with vendor, IP address and open ports
- Discover every mDNS/Bonjour service: HomePod, Apple TV, printers, IoT
- Ping and latency to local devices and to any internet host
- Throughput measurement against another device running this app, any TCP
CHARGEN/DISCARD server, or the internet
- Run a TCP CHARGEN or DISCARD service on your own device
- 3D animated view of your local network topology

FULL SNMP CLIENT INCLUDED
Query any SNMP agent on your routers, switches, access points and printers.
SNMP v1, v2c and v3, with noAuthNoPriv, authNoPriv and authPriv, MD5 and SHA1
authentication, DES and AES privacy. 64 standard MIBs are bundled, so object
identifiers are resolved to readable names offline - no server, no subscription,
nothing to configure beyond the agent address and credentials.

FOR HOMES AND FOR PROFESSIONALS
Built by a network engineer. Simple enough to diagnose your apartment on a Sunday
afternoon, precise enough that telecom professionals use it on the job.

BEFORE YOU BUY - WHAT THIS APP DOES NOT DO
Apple does not let any third-party iOS app read WiFi signal strength or scan
neighboring networks, and no App Store app can do it - this is why professional
tools need external hardware. This app maps what it can measure at the spot where
you are standing: real throughput and latency. That is what a home heat map needs.
It measures the network you are connected to, one heat map at a time.

Version History Bug fixes and minor improvements. 6.4.2 Sep 27 Bug fixes and minor improvements. 6.4.1 Sep 26 WiFi Heat Map now speaks your language: the app is available in 44 languages, including Arabic, Chinese, Hindi, Japanese, Korean, Portuguese, Russian and many more.

- Every screen, help message and error message is translated
- Clearer error messages when a measurement cannot reach its target 6.4 Sep 25 This version fixes a bug that prevented the app from launching on the latest version of iOS. 6.3 Sep 24 Visual update for iOS 26: the app adopts Apple's new Liquid Glass design. 6.1 Apr 2 Updated throughput server IP, app name changed, new step-by-step interface added. 5.3 08/04/2025 Updated throughput server IP, app name changed, new step-by-step interface added. 5.2 06/16/2025 App name changed, new step-by-step interface added. 5.1 06/01/2025 Bug fix for running on iOS 18. App name changed. 4.3 03/18/2025 Bug fix for running on iOS 18 4.2 10/15/2024 Bug correction (app was hanging during about 5 seconds when browsing the network) 4.1 07/10/2024 A very useful port filtering button has been added in the 3D panel, in order to easily select some network hosts.
The app has been totally refactored to use the Swift structured concurrency model. 4.0.0 07/09/2024 Bug correction (this bug could crash the app) 3.6 04/06/2024 Fixed some memory leaks. 3.5 02/01/2024 Corrected some data leaks. 3.4 01/31/2024 Many performance improvements: can now handle hundreds of nodes on your WiFi network, for instance to explore public hotspots. 3.3 12/25/2023 The measured value is indicated in real time under the graph curve.
The user can update the duration of the interval over which the measurement average is computed (default value: 1 second; available values: 100ms to 5s).
Latency measurement (PING) is started automatically. 3.2 12/05/2023 Minor bug fix. 3.1 11/02/2023 3D animated view 3.0 10/03/2023 Live measurement values displayed under the chart. 2.7 04/20/2023 Spanish translation 2.6 03/28/2023 When the selected floor plan is not in portrait mode, information is displayed about the rotation that occurs. 2.4 03/18/2023 Improved user experience:
- auto restart throughput measurement when you move outside your WiFi network coverage,
- do not stop measurements anymore when the app comes back from background to foreground,
- on iPhone, a new button to open the heat map form appears under the chart view when you start a throughput measurement. 2.3 03/12/2023 bug fix: ICMP loop was sometimes terminated abnormaly 2.1 03/07/2023 - when TCP port 80 or 443 is discovered on a node, added shortcuts to open the web sites on those ports,
- added a help button on the heat map builder screen, redirecting the user to a step-by-step user's manual,
- when tapping the help button in the main screen, now opening the web site of the app with Safari, with a full set of information about this app. 2.0 03/07/2023