WiFi Analyze

Overview

WiFi Analyze is a native Android app that turns a phone into a home-network diagnostic tool — readable enough for a non-technical user, deep enough for an enthusiast. A Simple mode rates signal in plain English (Excellent → No Signal), maps dead spots room by room, and tells you whether a spot is solid enough for smart-home devices. An Advanced mode exposes the raw engineering: live dBm with a stability score, channel-congestion and spectrum-overlap charts, on-device speed and latency tests, and an A–F network score.

Everything a user records stays on the device. There is no account, no ads, no analytics, and no tracking; the only network traffic is the speed and latency tests the user starts by hand. It ships with a home-screen Glance widget, optional weak-signal notifications, and a Wear OS companion for glanceable signal on the wrist (built; not yet in the Play release).

Live

Google Play

Zero

Ads & Tracking

SDK 36

Target API

A–F

Network Score

Not affiliated with or endorsed by any router manufacturer or internet service provider.

Tech Stack

Built on the modern Android stack — Kotlin-first, Compose UI, Jetpack Architecture Components throughout, and shipped clean to Google Play.

Kotlin

Primary Language

Jetpack Compose

Declarative UI + Material 3

Hilt

Dependency Injection

Room

Local Database (SQLite)

DataStore

User Preferences

WorkManager

Background Monitoring

Glance

Home Screen Widget

Wearable Data Layer

Phone → Wear OS Push

ConnectivityManager

Network Callbacks + SSID

Google Play

R8 • App Signing • targetSdk 36

Architecture Note

MVVM throughout: ViewModels expose StateFlow streams to the Compose UI layer; a Repository layer mediates between ConnectivityManager network callbacks, Room, and DataStore; Hilt injects dependencies at every layer boundary. Ref-counted callbacks prevent leaks across dual-mode view models.

Key Features

Two audiences, one data source: the same signal pipeline feeds a plain-English verdict for casual users and a full diagnostic dashboard for enthusiasts.

📶

Plain-English Signal Quality

Colour-coded Excellent / Good / Fair / Poor / No Signal rating
Animated gauge for immediate readability
Per-band (2.4 / 5 / 6 GHz) breakdown of your own network
Smart-home readiness check on the 2.4 GHz signal

🏠

Room-by-Room Coverage Mapping

Save a reading per room, ranked by signal strength
Best / worst-room router-placement recommendation
Dead-spot identification across the whole home
Persistent storage — readings survive app restarts

🔍

Advanced Diagnostics

Live dBm with a stability score
Channel-usage bar chart and spectrum-overlap view
AP-vendor identification and mesh / multi-AP node detection
A–F network score rolled up from all metrics

⚡

On-Device Speed & Latency Tests

Download / upload via Cloudflare with live Mbps readout
Ping to gateway and 8.8.8.8
24h / 7d history charts for trend analysis
Friendly error messages for the no-internet case

🔒

Private by Design

All readings stay on the device — no account required
No ads, no analytics SDK, no tracking
Only network traffic: the speed/latency tests you initiate
Data Safety declaration matches the manifest exactly

📱

Widget, Alerts & Wear OS

Home-screen Glance widget with live signal strength
Edge-triggered weak-signal / all-clear notifications (no spam)
Wear OS companion built on the same signal pipeline
Phone → watch push via Wearable Data Layer API

Screenshots

Real device screenshots — signed release build, no personal data. Click any to enlarge.

Signal Dashboard

Room Coverage

WiFi Analyze — Advanced Diagnostics Dashboard

Advanced Mode

Channel Analysis

Speed Test

Home Widget

Technical Highlights

The engineering that makes this more than a WiFi list view.

📡

Modern Android Connectivity Stack, Done Right

ConnectivityManager network callbacks with FLAG_INCLUDE_LOCATION_INFO handle SSID resolution; they are ref-counted across two view models so a mode switch can’t leak a callback. Graceful fallbacks handle the location-off case without crashing or silently going stale.

⏳

Works Within Android’s Scan Throttle

Android restricts apps to ∼4 scans per 2 minutes. The app works within this constraint: scan requests are rate-limited, cached results are served in between, and a BroadcastReceiver for SCAN_RESULTS_AVAILABLE_ACTION drives updates rather than a polling timer.

🔔

Edge-Triggered Background Monitoring

A WorkManager worker samples signal, prunes history, and fires weak-signal / all-clear notifications on threshold crossings — state persisted in DataStore. A persistently weak signal never spams the user; only the transition triggers a notification.

⚡

Hand-Rolled Network Diagnostics

A streaming HTTP speed test delivers live Mbps callbacks; an ICMP-style latency runner pings the gateway and a public DNS server. Both feed into the A–F network score alongside the RF signal metrics. Friendly error surfaces cover the no-internet cases so users get a clear reason, not a crash.

⏱

Glance Widget + Wear OS Data Layer

The home-screen Glance widget is kept current across disconnect by writing to Glance’s Preferences state store from the WorkManager worker — decoupled from the Activity lifecycle entirely. Phone–watch push uses the Wearable Data Layer API so the watch never needs its own WiFi scan permissions.

✅

Shipped Clean to Play

R8 + resource shrinking, Play App Signing, adaptive + themed icon, backup rules, targetSdk 36, and a Data Safety declaration that matches the manifest exactly — precise-location declared, disclosed Cloudflare test endpoints, privacy policy aligned. No gaps the Play review team can flag.

What This Project Demonstrates

End-to-end Android product delivery: from platform-level connectivity APIs up through a dual-audience Material 3 Compose UI and out to a signed, policy-clean Google Play release.

Dual-Audience Product Design

Reducing raw RF data to a one-word verdict for a casual user while exposing dBm, charts, and scores for an enthusiast — same pipeline, two complete UX paths

Platform API Mastery

ConnectivityManager callbacks, WiFi scan throttling, Glance widget out-of-process state, Wearable Data Layer sync — working with OS constraints, not against them

Modern Android Architecture

MVVM + Repository, Hilt DI, StateFlow/Compose integration — the full Jetpack recommended stack applied to a real shipped product

Background Work & Widgets

WorkManager scheduling with edge-triggered notifications, Glance widget lifecycle decoupled from the Activity — Android beyond the screen

Google Play Release Management

R8 shrinking, Play App Signing, adaptive icon, Data Safety declaration, privacy policy — every checkbox a production release needs

Privacy-First Engineering

On-device storage only, no account, no analytics SDK — designed around the minimum data required to do the job

Frequently asked questions

What is WiFi Analyze built with?

Native Android using Kotlin and Jetpack Compose (Material 3) — with plain-English signal ratings, room-by-room coverage mapping, on-device speed tests, an A–F network score, a home-screen widget, and WorkManager background monitoring.

Can you build a native Android app for my business?

Yes — native Kotlin/Compose apps are part of our software development service.

Do you handle Google Play submission and release management?

Yes — we handle the full production release pipeline: R8 optimisation, Play App Signing, Data Safety declarations, privacy policy, and ongoing release management.