A list of interesting and open source Android apps.
Yalp Store lets you download apps from Google Play Store as apk files. It searches for updates of installed apps when it starts and lets you search for other apps. That's it. Yalp saves downloaded apks to your default download folder so you can later open it in your favourite file manager app and tap each one to install the apps.
KISS is a blazingly fast launcher for Android requiring nearly no memory to run.
Search through your apps, contacts and settings lightning fast. No more time spent trying to find the app you want to launch: enter a few characters of the name and hit enter. Need to call someone? Don't meddle with the call log, just give three letters of their name and push the "phone" button. KISS becomes smarter and smarter as you use it, pushing forward results you're more likely to select.
Privacy is possible, Signal makes it easy. Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at once, and share media or attachments all with complete privacy. The server never has access to any of your communication and never stores any of your data.
Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end encrypted. Wire works on Android, iOS, Windows, MacOS, Linux and any modern web browser.
Telegram is a messaging app with a focus on speed and security. It’s super-fast, simple, secure and free. Telegram seamlessly syncs across all of your devices and can be used on desktops, tablets and phones alike. You can send an unlimited amount of messages, photos, videos and files of any type (.doc, .zip, .pdf, etc.). Telegram groups have up to 5000 people and you can create channels to broadcast messages to an unlimited number of subscribers.
"It's worth a mention that Telegram's server side is not open-source. However, that doesn't really matter for security purposes, because the end-to-end encryption between client-side end users is tested and works flawlessly in Telegram regardless of the software on the server." — enigmatoid
"It's been shown that Telegram is very insecure and shouldn't be used if security and privacy are your primary concerns, which is something that Telegram has (and still does) advertised as a major feature." — JackDostoevsky
ProtonMail is the world’s largest encrypted email service with over 1 million users. The ProtonMail secure email app for Android brings easy-to-use email encryption to your mobile device by seamlessly integrating PGP end-to-end encryption. ProtonMail also provides a modern user interface with a full set of innovative features such as customizable swipe gestures and the ability to send expiring emails.
Brave has joined forces with LinkBubble to bring you a faster web - by blocking the ads and trackers that get in your way plus all the features you love from LinkBubble. Just go to the settings to turn on or off privacy features like ad blocking, tracker protection and HTTPS Everywhere.
Orbot is a free proxy app that empowers other apps to use the internet more securely. Orbot uses Tor to encrypt your Internet traffic and then hides it by bouncing through a series of computers around the world. Tor is free software and an open network that helps you defend against a form of network surveillance that threatens personal freedom and privacy, confidential business activities and relationships, and state security known as traffic analysis. Orbot creates a truly private mobile internet connection.
Orfox is a new privacy-enhanced browser for Android, based on Mozilla Firefox, configured by default to work with Orbot: Tor for Android.
Orfox is built from the same source code as Tor Browser (which is built upon Firefox), but with a few minor modifications to the privacy-enhancing features to make them compatible with Firefox for Android and the Android operating system. Orfox requires Orbot app for Android to connect to the Tor network.
In as many ways as possible, we adhere to the design goals of Tor Browser, by supporting as much of their actual code as possible, and extending their work into the additional Android components of Firefox for Android.
Feel free to add cool open source Android apps which would be missing from this list or to correct any mistake you could spot on this GitHub repo.