liuliang-buddy

Project Overview

Traffic Buddy is an Android data-plan query app built with Flutter. It logs in through carriers' official web interfaces so you can manage up to 4 numbers across China Mobile, Unicom, Telecom and CBN in one place, and check remaining data right from a home-screen widget.

One app to keep track of up to 4 SIM cards' remaining data.

Key Features

• Multi-SIM management: up to 4 numbers across four carriers, each with its own independent login session
• Official-site queries: fetches usage through carriers' official logins, matching their own pages
• Home-screen widget: shows remaining data on the launcher without opening the app
• Background refresh: periodically re-fetches usage so the widget stays fresh
• Low-data alerts: warns you when remaining data drops below a set threshold
• Estimated values flagged: Telecom figures are estimates and clearly marked "approx."

Target Audience

• Users with multiple SIM cards
• Android users who watch their data balance
• People managing family members' phone plans
• Users who dislike installing one app per carrier

Quick Start

1. Download the APK from Releases and install it on your Android phone
2. Log in to each carrier account inside the app
3. Add the home-screen widget to check data daily

Core Advantages

• All-in-one view: four cards without switching four official apps
• Trustworthy data: sourced from official sites, estimates clearly labeled
• Frictionless checking: widget plus background refresh, no app opening needed

System Requirements

Item	Requirement
OS	Android 7.0 or later
Architecture	ARM64

Notes

• Queries rely on carriers' web pages; logins or parsing may break after site redesigns
• Carrier credentials are stored inside the app; use it only on devices you trust
• Telecom figures are estimates for reference only