Open Source Android Communications Apps - Page 2
Sort By:
Communications Apps for Android
View 1575 business solutions-
AI-powered service management for IT and enterprise teamsGive your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
-
Earn up to 16% annual interest with Nexo.Put idle assets to work with competitive interest rates, borrow without selling, and trade with precision. All in one platform. Geographic restrictions, eligibility, and terms apply.
-
1
Facebook SDK for Android
Used to integrate Android apps with Facebook Platform
This open-source library allows you to integrate Facebook into your Android app. Integrate your Android app with Facebook to build engaging social apps by using the Facebook SDK for Android. To learn more about using Facebook development tools. The current version of the Facebook SDK for Android is version 11.2.0 and requires the Android API 15. Code and samples for the Facebook SDK for Android are available on GitHub. A secure and convenient way for people to log into your app or website by using their Facebook credentials. Enable people to post to Facebook from your app. People can share, send a message, and share to stories. Understand people's actions in your app and measure the effectiveness of your Mobile App Ads. Get data in and out of Facebook's social graph, query data, post stories, upload photos and perform other tasks. -
2
K-9 Mail
Open Source Email App for Android
K-9 Mail is an advanced, open-source email client for Android that's focused on making it easy to chew through large volumes of email. It's designed to be easy to use by both novice and power users, with plenty of useful features. It has IMAP push email support, support for multiple accounts, support for POP3 and Exchange 2003/2007 (with WebDAV), flagging, filing, signatures and more! K-9 Mail also offers a light and dark theme, keyboard shortcuts and emoji support. Like man's best friend, K-9 Mail is an email client you can depend on, and will surely be your best friend when it comes to handling your emails! -
3
Readrops
Android multi-services RSS client
Readrops is a multi-service RSS client for Android. Its name is composed of "Read" and "drops", where drops are articles in an ocean of news. -
4
Fishka2
High speed transferring files/folders between PCs and Androids
Fishka2 - version 3.3 A Java (desktop JRE/JDK 8) application designed for transferring files/folders between PCs and Android devices within the same local network. + Automatic network search by name. + Multithreaded operation. + Successful copying is confirmed by a checksum (SHA1) check. - Authentication and encryption are not supported. + If a copy error occurs, the "incomplete file" is automatically deleted. download versions: Fishka2.jar -> for PCs fishka2.apk -> for Androids (since v12) -
$300 in Free Credit Towards Top Cloud ServicesStart your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.
-
5
Berty
Berty is a secure peer-to-peer messaging app
Berty is an open, secure, offline-first, peer-to-peer and zero trust messaging app. Berty is an encrypted and offline peer-to-peer messenger with no central server. Connect with or without an internet connection, message for free, and avoid surveillance and censorship. Berty is fresh off the development line and hasn’t been audited yet. Please keep this in mind when exchanging data. In some countries, even a lol or a like can get you sent to jail. Berty is end-to-end encrypted - not even our developers could access your data, let alone corporations or governments. Just like blockchain technologies, Berty doesn’t pass your data through central servers - the place where internet service providers, hackers, and governments can intercept your data. Instead, Berty’s network is distributed, based on P2P direct messaging. Berty couldn’t care less about who you are. You don’t need to provide your real name, an email, or a date of birth. You don’t even need a SIM card! -
6
Jitsi Meet
Secure, simple and scalable video conferences application
Go ahead, video chat with the whole team. In fact, invite everyone you know. Jitsi Meet is a fully encrypted, 100% open source video conferencing solution that you can use all day, every day, for free — with no account needed. Head over to meet.jit.si and see the service in action before you decide whether you’d like to run your own instance. For those interested, check out the meet.jit.si terms of service and privacy policy. Yep, it’s free — and it’s technologically advanced, too. In fact, Jitsi Meet sounds better, thanks to HD audio with Opus; is anonymous, no need for an account, ever! It also keeps conversations private with encryption by default (and advanced security settings) and is developer-friendly, modify and customize it to your heart’s content. It’s 100% open source. Trade messages and emojis while you video conference, with integrated chat. -
7
Zulip
Powerful open source team chat application
Zulip is a powerful open source group chat application that combines the immediacy of real-time chat with the productivity benefits of a threaded conversation model. Zulip’s unique threading model allows users to easily catch up on important conversations, helping to save time and increase productivity. -
8
Repeater-START
Showing The Amateur radio Repeaters Tool
Repeater-START (Showing The Amateur Repeaters Tool) is an app to view nearby ham radio repeaters. It runs on Windows, Android, Ubuntu Linux and Raspbian for Raspberry-pi, Librem Phone, Pinephone/Manjaro Linux etc. -
9
-
Go From AI Idea to AI App FastAccess Gemini 3 and 200+ models. Build chatbots, agents, or custom models with built-in monitoring and scaling.
-
10
SIM Explorer
Sim Card explorer and decoder
This software uses your smart card reader/terminal to navigate through the SIM Card directory tree. The contents of the files are decoded and showed to the user. Other features, such as CHV management and SIM backup, are also available. -
11
Bitchat
Bluetooth mesh chat, IRC vibes
BitChat is a decentralized, peer-to-peer encrypted messaging app built by Jack Dorsey’s Permissionless Tech. It uses Bluetooth Low Energy mesh networking to relay messages without internet, servers, accounts, or phone numbers. Messages are end-to-end encrypted (Curve25519 + AES‑GCM) and the app includes a panic mode to erase data quickly. -
12
Element Android
A glossy Matrix collaboration client for Android
Element Android is a glossy Matrix collaboration client for Android, based on a new Android SDK fully written in Kotlin. A total rewrite of Riot-Android, Element is an all-in-one secure chat app made possible through the open global Matrix network. It is a messenger that allows users to talk to anyone regardless of their app, while providing unparalleled privacy and security. It protects conversations from data-mining and ads with proper end-to-end encryption, so you can feel totally secure. Element is used by millions all over the world for their business, organizations, and even for personal and home use. It is part of the Matrix ecosystem, which is an open network for secure, decentralised communication governed by The Matrix.org Foundation. -
13
Meshenger
P2P Voice/Video phone App for local networks
Meshenger is an open-source, serverless P2P voice and video calling app for Android that works over local networks or directly between devices without the internet. It facilitates direct communication using QR codes or IP addresses, bypassing the need for any central infrastructure or account registration. Meshenger is particularly suited for emergency scenarios, privacy-focused users, and mesh networks where conventional communication tools fail. It emphasizes minimalism, transparency, and full decentralization. -
14
ReadYou
An Android RSS reader presented in Material You style
ReadYou is a modern, open-source RSS reader for Android focused on minimalism, usability, and privacy. It supports standard RSS/Atom feeds, OPML import/export, and allows for offline reading. Built with Jetpack Compose, ReadYou offers a polished and intuitive user experience without background sync or data tracking. -
15
WebUploader
A new file uploader solution
WebUploader is a simple modern file upload component developed by the Baidu WebFE (FEX) team, mainly HTML5, supplemented by FLASH. In modern browsers, it can give full play to the advantages of HTML5, without abandoning the mainstream IE browser, using the original FLASH runtime, compatible with IE6+, iOS 6+, and android 4+. When the two sets are running, the same calling method is available for users to choose at will. Using large files to upload concurrently in fragments greatly improves the efficiency of file uploads. Fragmentation and concurrency are combined to divide a large file into multiple pieces and upload them concurrently, which greatly improves the upload speed of large files. When network problems cause transmission errors, only the error fragments need to be retransmitted instead of the entire file. In addition, fragmented transmission can track upload progress in more real-time. -
16
bitchat
bluetooth mesh chat, IRC vibes
bitchat is a decentralized peer-to-peer messaging app that operates over Bluetooth mesh networks, enabling local group chats without the need for internet, servers, or phone numbers. It is designed with privacy and security in mind, offering encrypted private messages and channels alongside a public local chat that requires no registration. -
17
ChatSecure
ChatSecure is a free and open source encrypted chat client for iOS
ChatSecure is a free and open source messaging app that features OMEMO encryption and OTR encryption over XMPP. You can connect to your existing Google accounts or create new accounts on public XMPP servers (including via Tor), or even connect to your own server for extra security. Unlike other apps that keep you stuck in their walled garden, ChatSecure is fully interoperable with other clients that support OMEMO or OTR and XMPP, such as Conversations (Android), CoyIM (Desktop), and more. ChatSecure only uses well-known open-source cryptographic libraries to keep your conversations private. Other apps may make claims about "military grade" security but, without publicly auditable source code and verifiable end-to-end encryption, you cannot be truly safe. -
18
Fluwx
WeChat SDK for flutter
fluwx is a Flutter plugin that provides a complete set of integrations with WeChat, one of the largest messaging and payment platforms in the world. It enables login, sharing (text, images, links, music, and videos), WeChat Pay, mini-program launching, and more directly from Flutter apps. The library abstracts platform-specific code for Android and iOS, exposing a unified Dart API. It’s frequently used by apps targeting the Chinese market or international businesses requiring WeChat payment gateways. The plugin is actively updated to track WeChat SDK changes and ensures compliance with its evolving features. For developers, it simplifies the complex task of working with WeChat’s ecosystem while maintaining flexibility and customization. -
19
Ovmeet
Video conferencing and collaboration platform
OvMeet is a video conferencing and collaboration platform developed in China that supports video meetings and H5 web/video live streaming. WebRTC, RTMP, SIP, RTSP, whiteboards, document presentation, file sharing, desktop sharing, recording, and more. The older version was built using Adobe/Flash, but that is no longer maintained. The newer version uses modern web technologies to deliver video conferencing services across Web, H5, Android, iOS, PC, etc. It also supports server configurations, live streaming, multiple protocols, and integration with hardware and AR components for extended use cases. Supports WebRTC, RTMP, RTSP, SIP protocols, enabling interoperability with streaming devices, hardware endpoints, and different media sources. -
20
libsignal
Home to the Signal Protocol and other cryptographic primitives
libsignal is the foundational cryptographic library that implements the Signal Protocol and other essential primitives used across the official Signal clients and servers, enabling secure end-to-end encrypted communication. Written primarily in Rust with bindings and APIs surfaced for Java, Swift, and TypeScript, this library encapsulates critical algorithms like the Double Ratchet, prekey mechanisms, secure key storage, and zero-knowledge group primitives, along with additional utilities for media handling and device key transfer. libsignal abstracts complex cryptographic constructions into reusable components that client applications can adopt to ensure forward secrecy, authentication, and integrity without re-implementing core security logic. Although its primary use is within the Signal ecosystem, its documentation and exposed interfaces allow developers to explore modern secure messaging primitives or use pieces of the protocol in experimental applications. -
21
JLibModbus - Java Modbus Library
A modbus library implemented in Java.
JLibModbus is an implementation of the Modbus protocol v1.1b in java language. The library supports the most popular communication libraries (jssc, rxtx, jSerialComm, purejavacomm, java comm api); Maven dependency: <dependency> <groupId>com.intelligt.modbus</groupId> <artifactId>jlibmodbus</artifactId> <version>1.2.9.7</version> </dependency> Implemented MODBUS functions: 0x01 Read Coils 0x02 Read Discrete Inputs 0x03 Read Holding Registers 0x04 Read Input Registers 0x05 Write Single Coil 0x06 Write Single Register 0x07 Read Exception Status 0x08 Diagnostics 0x0B Get Comm Event Counter 0x0C Get Comm Event Log 0x0F Write Multiple Coils 0x10 Write Multiple Registers 0x11 Report Slave Id 0x14 Read File Record 0x15 Write File Record 0x16 Mask Write Register 0x17 Read Write Multiple Registers 0x18 Read Fifo Queue 0x2B Encapsulated Interface Transport (Read Device Identification interface) -
22
Serial port assistant This is only a read-only mirror repository. Main repository: https://github.com/KangLin/SerialPortAssistant
-
23
Sharik - file sharing via WI-FI
Sharik lets you easily share files within your local network
Sharik is an open-source, cross-platform solution for sharing files via Wi-Fi or Mobile Hotspot. This app allows you to easily send photos, apps, files, text, literally anything, to any kind of device connected to the same network. It's convenient and blazing fast. Sharik is entirely free to use, and it contains no ads. Moreover, its source code is published on GitHub so that everyone can contribute to the development process. So, if you like it, please leave a star on our GitHub repository, and consider contributing: add a new language or help us with code. YOU CAN SEND: 1. Photos (jpg, png, gif, etc) 2. Applications (apk) 3. Files (zip, rar, 7z, pdf, etc) 4. Text GitHub page: https://github.com/marchellodev/sharik Download Sharik right now! -
24
jphonelite
Java VoIP Softphone (SIP) (replaced by jfPhone)
jphonelite is a Java SIP VoIP SoftPhone for Desktops (Windows, Linux, Mac) and Android. Features 6 lines with transfer, hold, conference (up to all 6 lines), g711 u/a, g722, g729a, and video (video support in Linux or Windows only and includes H263/H264/VP8). Applet includes full JavaScript support. STUN/TURN/ICE supported. Encrypt media with SRTP. DTLS Key Exchange. Video conferencing with jPBXLite/0.12+ NOTE : THIS PROJECT HAS BEEN SUPERSEDED BY jfPhone. Please go to jfphone.sourceforge.net to get latest version. -
25
RabbitRemoteControl
Remote control. Support VNC, RDP, Terminal, SSH, TELNET etc
Rabbit Remote Control is a open-source, cross-platform, multi-protocol remote control software. Allows you to use any device and system in anywhere and remotely manage any device and system in any way. Its goal is to be simple, convenient, security and easy to use, improving work efficiency. It include remote desktop, remote control, file transfer(FTP, SFTP), terminal, remote terminal(SSH, TELNET), player, network tools etc functions. This is only a read-only mirror repository. Main repository: https://github.com/KangLin/RabbitRemoteControl
