10 Free Open Source Android Apps Source Code For Android Developers

If you already know how to create Android Apps, you may want to look into the open source android apps source code to boost your android development skills. By reviewing open source codes of Android apps, you can learn how to build better Android apps.

Free Open Source Android Apps

To help you get started, we have a compilation of 10 Free Open Source Android Apps in this post below.

1. Simple Calendar for Android

Simple Calculator Android APP

If you were looking to learn Kotlin, then this calendar app is probably one of the best ways to start. This app makes it perfect to get your hands dirty learning a completely new language for developing Android apps. You can also learn to make custom desktop widgets for Android.

(Github | Play Store | Difficulty: Beginner)

2. Amaze File Manager for Android

Amaze File Manager for Android

A file manager is a very common Android app that you can find on almost any Android device. Though building a file manager is quite difficult to get it right on all Android platforms and all devices. You can learn how to perform proper file handling on SD cards with this app source code.

(Github | Play Store | Difficulty: Intermediate)

3. LeafPic – Photo gallery Android App

LeafPic - Photo gallery Android App

If you are wondering how Photo and Video gallery apps for android are made, LeafPic is one of the best open source gallery apps for Android you can try. If you are a beginner android developer, It is perfectly suitable for you to understand.

(Github | Play Store | Difficulty: Beginner)

4. PhotoAffix – Android Photo App

PhotoAffix - Android Photo App

This open source android app is ideal for any beginner android developer who wants to learn the basics of Android Development. This app can be used to stitch photos vertically or horizontally. You can also learn to make some simple yet useful custom views which can help you to get your foundation ready so that you can later move on to creating some really complex views in future.

(Github | Play Store| Difficulty: Beginner)

5. MovieGuide Android APP

MovieGuide Android APP

This is one of the best open source android apps which will help you to list the popular movies with their trailers and reviews. The app showcases some really cool development stuff like MVP, Uncle Bob’s Clean Architecture, gives the sweet taste of RxJava and dependency injection using Dagger 2.

(Github | Difficulty: Intermediate)

6. Minimal ToDo

Minimal ToDo

This todo app source code is also recommended for a beginner developer. With this very simple yet project, you can learn most of the basic and fundamental aspects of Android development.

(Github | Play Store | Difficulty: Beginner)

7. Timber – Music Player Android App

Timber - Music Player Android App

Timber is fully featured music player for Android. If you want to build your own music player or any music related app, then this is the project you need to look at. The project is very active in development, it might be a bit difficult for you if you are a beginner but it should be really interesting for any intermediate or advanced level Android developer.

(Github | Play Store | Difficulty: Advanced)

8. InstaMaterial – Instagram Clone App

If you are looking to improve your Material Design skills, then this source code can help you. InstaMaterial tries to replicate parts of the Instagram app in beautiful Material Design. There are lots of Material Design elements, animations and transitions used in this app which you can learn and implement in your own Instagram clone project.

(Github | Difficulty: Beginner)

9. Travel Mate – Android Travel App

Travel Mate - Android Travel App

If you want to learn to develop a location-based Android app, then this project is probably the best place to start. You can start travel app project with this open source android app.

(Github | Difficulty: Intermediate)

10. Pedometer Android APP

Pedometer Android APP

A simple, light-weight pedometer app which uses the hardware sensor to calculate the steps taken with almost no impact on the battery performance of the device. It is a good project to start learning step tracking, but the coding standards and design are not good enough to be followed.

(Github | Difficulty: Beginner)

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