Android Diagnostic App Development

I am looking for an individual Android developer (freelancer only) to build a mobile diagnostic application that provides detailed hardware, software, and system information of Android devices.

Agencies, teams, or companies should NOT apply.
Only solo freelancers will be considered.

Reference app:
https://play.google.com/store/apps/details?id=com.ytheekshana.deviceinfo

Core Features Required:-

Device Information

Device brand & model
Android OS version
Build number
CPU architecture
GPU details
Device identifiers (Google Play policy compliant)

Hardware Diagnostics
Real-time CPU usage
RAM usage (used / available)
Internal & external storage details
Battery health, temperature, charging status
Sensors list (accelerometer, gyroscope, proximity, etc.)

Network & Connectivity
Wi-Fi details
Mobile network information
IP address
Signal strength
SIM-related info (policy compliant)

System & Software Information
Installed apps list
System uptime
Screen resolution & DPI
Kernel version

UI / UX
Clean and modern UI
Easy navigation
Dark mode support
Fast and lightweight performance

Technical Requirements
Platform: Android
Language: Kotlin (preferred) or Java
Google Play Store policy compliant
No privacy violations or restricted permissions
Clean, maintainable code

Optional (Nice to Have)
Diagnostic report export (PDF / TXT)
One-click full device scan
Multi-language support
Ads integration (optional)

Mandatory for Applying
Please include the following in your proposal:

At least one Android app sample (Play Store link or APK)
Your personal role in the app development
Estimated timeline & cost
Proposals without samples will be rejected.
Teams, agencies, or companies should not apply.