Modern Android utility app with tools like Device Info, App Locker, Cleaner, File Manager, WiFi Analyzer, and more – fully AdMob integrated.

🚀 Overview

Device Doctor is a powerful Android Studio (Java/Kotlin) project that combines all essential mobile utilities into one dynamic app. With a colorful modern UI, smooth navigation, and AdMob monetization, it’s perfect for developers and resellers looking for a high-quality utility toolkit.

💰 Monetization

• AdMob App Open Ads
• AdMob Interstitial Ads

All ad placements are already integrated and tested. Just replace your AdMob IDs in the code and start earning instantly.

🧩 Technical Details

• ✅ 100% Native Android Studio Project (Java/Kotlin)
• ✅ Compatible with Android 6.0 and above
• ✅ No external or paid APIs required
• ✅ Fully responsive layout with material components
• ✅ Clean & well-commented source code
• ✅ Easy reskinning and branding

📦 What You Get

• 📁 Full Android Studio Source Code
• 🧾 Detailed Documentation (Setup + Screenshots)
• 🎨 App Icon & Branding Files
• 💡 AdMob Integration Guide

✨ Features

• 📱 Device Management Tools – Complete hardware & software information.
• 🔒 App Locker – Protect apps with a secure PIN lock.
• 📁 File Manager – Smart file browser with categorized sections.
• 🧹 Storage Cleaner – Detect and remove junk to optimize performance.
• 📊 WiFi Analyzer – View network details and signal strength.
• 🧮 Smart Calculator – Functional calculator with history.
• 📄 Image to PDF Converter – Convert photos into PDF instantly.
• 📷 QR Code Scanner – Fast and accurate scanning tool.
• 🔐 Secret Codes Collection – Access hidden Android codes safely.
• 🎨 Modern Material UI – Colorful design supporting light & dark mode.

⚙️ Requirements

Before using or building Device Doctor – All-in-One Utility Toolkit, ensure you have the following environment and runtime requirements:

• Development Environment
  • Android Studio (recommended) — Arctic Fox / Bumblebee / Chipmunk or later. Latest stable release recommended.
  • Gradle plugin compatible with the project (the project contains exact Gradle version in the gradle/wrapper/gradle-wrapper.properties file).
  • JDK 11 or newer (depending on the project Gradle config).
• Android SDK / Build
  • Android SDK Tools installed (platform tools, build-tools).
  • minSdkVersion: 23 (Android 6.0) or higher (adjustable in the project).
  • targetSdkVersion: 33+ (project configured; you can update to latest if needed).
• Languages & Frameworks
  • Native Android project (Java and/or Kotlin). The source code is implemented in Java/Kotlin — see project files for exact language mix.
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  • AdMob — Replace demo/test AdMob IDs with your own Ad Unit IDs (banner, interstitial, native) in the project before publishing.
  • No external paid APIs are required by default. If you add optional plugins, follow their docs.
• Required Android Permissions###/strongul###
• INTERNET — Required for ads and network features.
• ACCESS_NETWORK_STATE — For network state checks and analytics.
• READ_EXTERNAL_STORAGE / WRITE_EXTERNAL_STORAGE — For file manager and image-to-PDF operations. (Note: for Android 11+ scoped storage rules apply; code handles scoped storage where applicable.)
• CAMERA — For QR code scanner (if using camera scanning).
• ACCESS_WIFI_STATE / CHANGE_WIFI_STATE — For WiFi analyzer features.
• REQUEST_INSTALL_PACKAGES — Only if the project includes APK installer features (optional).
• Any other permissions are declared in AndroidManifest.xml. Review them and adjust as required for Play Store policy compliance.

• Test on devices running Android 6.0 (API 23) up to the latest Android release available to you.
• Test on a mix of low-mid and high-end devices to validate performance of cleaner, file manager, and WiFi analyzer features.

• Replace AdMob test IDs with your production AdMob IDs and test thoroughly before publishing.
• Create a release keystore and sign your APK / AAB for Play Store submission.
• Ensure runtime permission prompts show a clear rationale to the user to comply with Play Store policies.

• Google Play Console account for publishing (if you plan to publish).
• Proguard/R8 rules — adjust if you enable code shrinking/obfuscation.
• Analytics / crash reporting (optional): Firebase or other providers — add keys if you want these services.

Notes: The project includes a README.md and a step-by-step setup guide that explains where to put AdMob IDs, how to build & sign the app, and how to handle runtime permissions. If you need the app to support a different minimum SDK or require additional plugins, you

🧭 Instructions

Follow these simple steps to set up, customize, and publish Device Doctor – All-in-One Utility Toolkit using Android Studio:

1. Download & Extract Source Code Unzip the provided Device Doctor Source Code.zip file to your computer.
2. Open Project in Android Studio Launch Android Studio → Click “Open an Existing Project” → Select the extracted folder.
3. Sync Project with Gradle Wait for Gradle build to complete and download all dependencies automatically.
4. Replace App Package Name Go to AndroidManifest.xml or right-click your package in the Project panel → Refactor → Rename package with your custom name (e.g., com.yourcompany.devicedoctor).
5. Add Your AdMob IDs - Open the AdMob configuration file or strings.xml. - Replace demo Ad Unit IDs with your real Banner, Interstitial, and Native IDs. - Make sure your app is tested using test IDs before going live.
6. Customize App Branding - Change app name in res/values/strings.xml. - Replace app icon in mipmap folders. - Adjust colors, splash screen, and dashboard UI as desired.
7. Check Permissions Verify required permissions in AndroidManifest.xml (Internet, Storage, Camera, WiFi access, etc.). If targeting Android 11+, handle runtime permissions according to scoped storage rules.
8. Build & Run Connect an Android device or use an emulator → Click Run ▶ to test all tools and features (Device Info, Cleaner, File Manager, etc.).
9. Generate Signed APK / AAB Once testing is complete, go to Build → Generate Signed Bundle / APK → Create a new keystore → Build release version.
10. Publish Upload your signed APK or AAB to the Google Play Console or Amazon Appstore. Update app details, screenshots, and privacy policy before submitting for review.

📄 Additional Notes:

• No paid APIs are required for this project.
• Supports Android 6.0 (API 23) and above.
• Full documentation (PDF or README) is included inside the source package.
• Code is fully commented and easy to reskin or extend with new tools.

Tip: Test each feature on real devices before publishing for best performance and user experience.
💡 Need Help? – Check the included documentation or contact the author for support.