Comparison

WiFi Tester 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 Tester

Features
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WiFi Tester is your all-in-one network diagnostic tool. Instantly analyse your WiFi connection and get actionable insights to improve your network performance. KEY FEATURES: • One-Tap Diagnosis Comprehensive network health check with a 0-100 score and personalized optimization suggestions. • Speed Test Accurate download and upload speed measurements powered by Cloudflare's global network. • Device Scanner Discover all devices connected to your network with manufacturer identification. • Ping Test Measure latency, packet loss, and jitter to any host. • Network Tools Traceroute, DNS test, and more professional diagnostic tools. • Home Screen Widget Monitor your network status at a glance with beautiful widgets. • Privacy First All data stays on your device. No cloud sync, no tracking, no ads. Perfect for troubleshooting slow internet, checking network security, or optimising your home WiFi setup.

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 Tester4 screens
Signl4 screens

Verdict

The call

WiFi Tester and Signl are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Both are free to download. WiFi Tester sells 1 one-off in-app purchase and Signl sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

WiFi Tester ships an update every 5 days, Signl weekly. The most recent releases landed on October 19, 2026 and October 11, 2026 respectively.

ScorecardNo meaningful differences
WiFi Tester versus Signl: the parameters behind the verdict, then further details
ParameterWiFi TesterSignl
PriceFreeFree
Rating—4.5 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 5 days — betterWeekly
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad — betteriPhone
Requires iOS18.618.0 — better
Further details — not scored
Size6 MB30 MB
Age rating4+4+
DeveloperChunyong WangVictor Backouche

In-app purchases

1 purchases

WiFi Tester

One-time1
  • Full Version$2.99
2 purchases

Signl

Subscriptions2
  • Signl Pro — Weekly$4.997 Days
  • Signl Pro — Yearly$24.991 Year

Questions

Is WiFi Tester free?
WiFi Tester is free to download, with in-app purchases available.
Is Signl free?
Signl is free to download, with in-app purchases available.
Do WiFi Tester or Signl have ads?
Neither WiFi Tester nor Signl shows ads.
Which is updated more often, WiFi Tester or Signl?
WiFi Tester ships an update every 5 days, and Signl weekly. Most recently, WiFi Tester was updated on October 19, 2026 and Signl on October 11, 2026.

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