Gym Trim

A simple fitness tracker app with material you design support

Mobile App DevelopmentJavaApache-2.0

Abstract

Gym Trim is an open-source Mobile App Development project. A simple fitness tracker app with material you design support. GymTrim is a fitness app designed to help you document your training data. While it can help you track your progress, there is no guarantee that it will improve your athleticism or health. It is built using Java. Key capabilities include: Material You design (and default theme); Auto-save for all data; Search for exercises and plans. The complete source code is publicly available on GitHub under the Apache License 2.0, making it a useful reference for students building a Mobile App Development mini project or final-year project.

1. Introduction

GymTrim is a fitness app designed to help you document your training data. While it can help you track your progress, there is no guarantee that it will improve your athleticism or health. All training data is recorded and stored locally on your device—your data remains private and is never shared.

2. Objective

A simple fitness tracker app with material you design support

This project demonstrates how Java can be applied to a real-world Mobile App Development problem.

3. Key Features / Modules

  • Material You design (and default theme)
  • Auto-save for all data
  • Search for exercises and plans
  • Different sounds for reminders
  • Swipe-to-delete functionality
  • English and German translations
  • Light and dark mode
  • Import and export data
  • Update notifier

4. Technology Stack

Java
  • AmbilWarna by yukuku – Apache License 2.0
  • MPAndroidChart by PhilJay – Apache License 2.0
  • Picasso by Square – Apache License 2.0
  • FreeDroidWarn by woheller69, marcprux, sevmonster and Fjuro - Apache License 2.0

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

  • JDK 11 or later
  • Maven / Gradle
  • IntelliJ IDEA, Eclipse or Android Studio
  • Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/naibaf-1/GymTrim.git
cd GymTrim
  1. Download the APK from the Release page
  2. Select the app version you want.
  3. Download the attached APK
  4. Use your file manager to find the .apk.
  5. Tap the file and follow the on-screen instructions to install.
git clone https://github.com/naibaf-1/GymTrim.git

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

  • Add push notifications with Firebase Cloud Messaging
  • Add offline support with local caching
  • Publish an internal test build on the Play Store

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

  1. Which framework is used and why (native vs cross-platform)?
  2. How is app state managed across screens?
  3. Where is the data stored — locally, Firebase or a REST backend?
  4. How are permissions (camera, location, storage) handled?
  5. How would you publish this app to the Play Store / App Store?

9. Source Code & License

This project is developed by naibaf-1 and published on GitHub under the Apache License 2.0. Please follow the license terms and credit the original author when you use or modify this code.

View Source on GitHubDownload ZIP

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