WiFi DeadZone - Signal Map
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Measure Wi-Fi in each room, find dead zones by color, and compare before/after.
- Price
- Free
- No in-app purchases
- Updated
- Nov 3
- 2026 · v1.0.0
Screenshots
About WiFi DeadZone - Signal Map
Fast Wi‑Fi in the living room, but it drops in the bedroom?
WiFi DeadZone lets you measure the signal room by room on your own floor plan and shows weak spots by color.
■ How it works
1. Prepare a floor plan: Enter room sizes and a plan is made for you. You can also draw it yourself or trace over a photo of a floor plan.
2. Measure each room: Tap where you are standing on the plan, and the signal at that spot is saved.
3. Check and compare: See dead zones on a heatmap, then move your router or add an extender and measure again to compare.
■ Key features
• Signal heatmap: Your measurements become a color map of your whole home, with an A–D grade for each room and a score out of 100.
• Dead zone diagnosis: See which rooms are weak and why, with tips such as moving the router, adding an extender, or using a mesh system.
• Before and after: Compare with an earlier measurement to see which rooms got better or worse, by score and color.
• Nearby networks and channels: See which channels nearby Wi‑Fi networks use and find a less crowded one.
• Link speed: The link speed between your phone and the router is saved with each measurement.
• Many places and floors: Keep separate places such as home or office, each with its own floors, plans and routers. No limit on the number of floors.
• Router placement: Place routers, extenders and mesh points on the plan. Floors without a router can be measured too.
• Walls, doors and windows: Mark wall materials, doors and windows to understand where the signal is blocked.
• Export as image or PDF: Save the heatmap or comparison, or share it with family or an installer.
■ Great for
• Anyone whose Wi‑Fi keeps dropping in certain rooms
• Deciding where to put the router or whether you need an extender
• Checking whether a new mesh system or extender actually helped
• Checking Wi‑Fi coverage in an office or shop
■ Good to know
• Readings are reference values for the phone you use and may vary by phone model and how you hold it.
• To compare before and after, measure with the same phone and hold it the same way.
• This app checks Wi‑Fi signal strength inside your home. It does not test internet speed (download or upload).
WiFi DeadZone lets you measure the signal room by room on your own floor plan and shows weak spots by color.
■ How it works
1. Prepare a floor plan: Enter room sizes and a plan is made for you. You can also draw it yourself or trace over a photo of a floor plan.
2. Measure each room: Tap where you are standing on the plan, and the signal at that spot is saved.
3. Check and compare: See dead zones on a heatmap, then move your router or add an extender and measure again to compare.
■ Key features
• Signal heatmap: Your measurements become a color map of your whole home, with an A–D grade for each room and a score out of 100.
• Dead zone diagnosis: See which rooms are weak and why, with tips such as moving the router, adding an extender, or using a mesh system.
• Before and after: Compare with an earlier measurement to see which rooms got better or worse, by score and color.
• Nearby networks and channels: See which channels nearby Wi‑Fi networks use and find a less crowded one.
• Link speed: The link speed between your phone and the router is saved with each measurement.
• Many places and floors: Keep separate places such as home or office, each with its own floors, plans and routers. No limit on the number of floors.
• Router placement: Place routers, extenders and mesh points on the plan. Floors without a router can be measured too.
• Walls, doors and windows: Mark wall materials, doors and windows to understand where the signal is blocked.
• Export as image or PDF: Save the heatmap or comparison, or share it with family or an installer.
■ Great for
• Anyone whose Wi‑Fi keeps dropping in certain rooms
• Deciding where to put the router or whether you need an extender
• Checking whether a new mesh system or extender actually helped
• Checking Wi‑Fi coverage in an office or shop
■ Good to know
• Readings are reference values for the phone you use and may vary by phone model and how you hold it.
• To compare before and after, measure with the same phone and hold it the same way.
• This app checks Wi‑Fi signal strength inside your home. It does not test internet speed (download or upload).
What’s new
Version 1.0.0 · Updated November 3, 2026
First release of WiFi DeadZone. • Enter room sizes to make a floor plan, or draw it or use a photo of a plan. • Tap where you stand to measure Wi‑Fi in each room. • See dead zones at a glance with a heatmap and a grade for each room. • Get tips such as moving the router or adding an extender. • Measure again after changes and compare before and after. • Nearby networks and channels, and export as image or PDF.