Whether you’re a developer, a designer or just an Android fan trying to find something cool to do on your weekend, the world is made richer by open source Android app projects. Some are created for profit and some just for the love of Android apps. Whatever the reason, the Android community relies on open source projects to develop Android apps at a faster rate than any other platform. And many of these free and open source Android app projects are easily adaptable to other mobile operating systems.
The best way to learn is to read and that’s true for a developer as well. If you want to become a better developer, you have to read more code. It’s as simple as that.
Books, blogs, forums are all good to a certain extent but there is nothing that can replace some fully-functional, exhaustive open-source projects where the entire app with all its resources is right in front of you.
All you have to do is sit back, take a cup of coffee and read some kick-ass code. Here in this article, we bring some of the best open-source Android apps from various categories and genres to fulfill all your learning and development needs.
You can try these apps directly from Play Store to have a hands-on experience before diving deep into the code. The difficulty level attached with each app will help you to judge if you should instantly dive into it or put it aside for the time being.
Telegram is a widely used encrypted instant messaging service available for Android and iOS. If you are interested in understanding how an Instant Messaging App is built, you should try this out.
3. Easy Sound Recorder
Easy Sound Recorder is an open-source sound recorder app designed with material design. With this project, You can learn Android voice recording integration and manipulation
NewPipe is somewhat a lightweight version of YouTube that unlocks a heap of otherwise restricted features. The app comes with a simple UI but is packed with some powerful features — background player, picture-in-picture mode, download support for offline playback and on top, it’s a completely free open-source Android app with no-ads. The main plus point of this app is its “extended privacy” — NewPipe protects user privacy since no proprietary Google APIs is there in the code and only send information which are required to get video and channel details.
AntennaPod is an open-source podcast manager and player that gives you instant access to millions of free and paid podcasts. This project will help you understand different integration techniques, managing playback settings, etc.
7. Open Camera
Open Camera is a fully featured and open-source camera app for Android devices. The project will help you know about how to add the auto-stabilization option on a camera app, how to take photo remotely by making a noise, multi-touch gesture and single-touch control on the camera app, etc.
DroidFish is primarily designed for engine analysis of chess positions and viewing and editing of chess games. If you are looking to implement a chess engine, this project would do you good.
9. Lunary Ethereum Wallet
Remindly is a simple and user-friendly Android application to create reminders. If you want to know more about working with time and advanced to-do apps, check this repo.
11. Spacex Go
SpaceX Go is a powerful, open-source SpaceX launch tracker with a very simple UI, If you are looking for how to implement a mobile tracker, this is one codebase that would be of great assistance.
A simple Flutter Open Source app to Read and Download books. This project would help you understand how to connect with public APIs, access and display data
13. Covid19 Tracke
Tracking the impact of COVID-19 cases based on your location, built in Flutter. If you are looking to build a medtech app for disease tracking and control, this codebase would provide a lot of support
14. Flutter WhatsAppClone
If you are looking to build your own instant messaging app or a lookalike of WhatsApp with all the features and more with Flutter. Check this codebase
Fully-featured lightweight open-source Android note-taking application. This codebase will help to develop your own note-talking application with cool features, including a To-do list feature on your note app, etc.
17. Easy Sound Recorder
Easy Sound Recorder is a simple open-source sound recorder app with material design. The project will help you to learn Android voice recording integration and manipulation in apps.
18. FreeOTP Authenticator
FreeOTP is an open-source 2FA authenticator developed by Red Hat. The app source code teaches you the working of an authenticator app, how to generate one-time passwords on your mobile devices which can be used in conjunction with your normal password to make your login nearly impossible to hack.
19. Keepass2Android Password Safe
Keepass2Android is an open-source password manager app for Android. The projects make you understand the security features of a password manager and how to safeguard and autosave passwords using built-in cloud storage options.
20. Movie Giude
The goal of this app is pretty simple, to list the popular movies with their trailers and reviews. But what makes this project really interesting is the way things have been implemented here.
The app showcases some really cool development stuffs like MVP, Uncle Bob’s Clean Architecture, gives the sweet taste of RxJava and dependency injection using Dagger 2.
The app is quite simple but the way things have been implemented is fantastic and definitely worth a look.
The best part is that the user can be a part of the development process, send new features and fixes to these projects or suggest them. So if you have an app idea then why not start coding it yourself and send it to these developers. Of course make sure its your own code, so you can sell it on Google Play when its ready (if possible) . Or maybe you can be the creator of next big thing.
Open source Android app is gaining a lot of popularity, and there are many such apps on Google’s Play Store. These open source Android app projects are worth trying as they improve your knowledge on Android development. Which open source Android app impress you the most?