Open Source Android Business Apps
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Business Apps for Android
View 23964 business solutionsBrowse free open source Business apps and projects for Android below. Use the toggles on the left to filter open source Business apps by OS, license, language, programming language, and project status.
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Dolibarr ERP - CRM
Open source ERP and CRM web software for business
Dolibarr ERP - CRM is an easy to use ERP and CRM open source software package (run with a web php server or as standalone software) for businesses, foundations or freelancers (prospect, invoicing, inventory, warehouse, order, shipment, POS, members for foundations, bank accounts...). Dolibarr is also available with auto-installers for users with no technical knowledge to install Dolibarr and all its prerequisites (Apache, Mysql, PHP) with just one package. Available platforms for such packages are: Windows, Debian, Ubuntu, Mint, Redhat, Fedora, OpenSuse, Mandriva, Mageia. Other platform can use the generic distribution. This is a modular product, than can be enhanced with tons of external modules (to provide you features not available by default) from https://www.dolistore.com Download Dolibarr ERP - CRM here or sign up for 15-day free trial of the cloud-based application with free updates and support at one of the Cloud providers https://saas.dolibarr.org/ -
2
FlClash
A multi-platform proxy client based on ClashMeta
FlClash is an open-source, ad-free cross-platform GUI client for ClashMeta proxy on desktop and mobile. Built with Flutter and Go, it offers a Material You UI, supports Android, Windows, macOS, and Linux, and features WebDAV syncing, subscription link support, dark mode, and advanced proxy rules for customized network routing. -
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Pandora Open
Open Source Monitoring System for performance and availability.
Pandora OPEN is a high-performance, 100% open-source monitoring ecosystem, born as the independent evolution of the Pandora FMS community branch after version 777. Licensed under GPLv2, it provides a modular and sovereign platform for supervising networks, servers, and applications without commercial dependencies. It features multi-platform agents, remote monitoring (SNMP, WMI, HTTP), GIS maps, and advanced visual dashboards. Entirely maintained by the community on GitHub, it ensures total transparency, technical flexibility, and absolute freedom for system administrators. -
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NOOP
Pair your strap over Bluetooth, keep all data on your own device
NOOP is an offline companion app for WHOOP straps that keeps biometric data on the user’s own device. It pairs with supported straps over Bluetooth and stores readings locally in SQLite instead of using a cloud account or subscription. The app can read data such as heart rate, R-R intervals, temperature-related values, respiration signals, battery information, and events, depending on device support. It also imports WHOOP CSV exports, Apple Health exports, and nutrition CSV data to build a local history. NOOP computes metrics such as recovery, strain, HRV, sleep, workouts, trends, and correlations using transparent on-device analytics. It is an independent, unofficial interoperability project for users who want local-first access to their own wearable data. -
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Flet
Flet enables developers to easily build realtime web and mobile apps
Flet enables developers to easily build real-time web, mobile and desktop apps in Python. No front-end experience is required. An internal tool or a dashboard for your team, weekend project, data entry form, kiosk app or high-fidelity prototype - Flet is an ideal framework to quickly hack great-looking interactive apps to serve a group of users. No more complex architecture with JavaScript frontend, REST API backend, database, cache, etc. With Flet you just write a monolith stateful app in Python only and get a multi-user, real-time Single-Page Application (SPA). To start developing with Flet, you just need your favorite IDE or text editor. With no SDKs, no thousands of dependencies, no complex tooling, Flet has a built-in web server with assets hosting and desktop clients. -
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Data Crow
Your collection, your way
Data Crow is an open source collection manager for movies & video (DivX, MP4, MKV, etc.), TV series, books (and eBooks), images, board games, comic books, games & software, and music (MP3 and other audio files). Besides these built-in modules (which you can customise to fit your needs) you can create entirely new ones. Want to catalogue your stamps, equipment, wine, or anything else? Data Crow makes it possible. Your collection is accessible the way you prefer: as a stand-alone desktop application, in server-client mode for shared access across multiple users or devices, via the web client in any browser, or on the go with the Data Crow Reader App. The app synchronises with your Data Crow installation and works fully offline. Private. Offline. Completely personal. The Data Crow way. -
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Joplin
Open source note taking and to-do app with synchronization
Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other. -
8
ZXing
Barcode scanning library for Java, Android
ZXing or “Zebra Crossing” is an open source multi-format 1D/2D barcode image processing library that’s been implemented in Java, and also comes with ports to other languages. It currently supports the following formats: UPC-A and UPC-E EAN-8 and EAN-13 Code 39 Code 93 Code 128 ITF Codabar RSS-14 (all variants) RSS Expanded (most variants) QR Code Data Matrix Aztec ('beta' quality) PDF 417 ('alpha' quality) MaxiCode ZXing is made up of several modules, including a core image decoding library, JavaSE-specific client code, and Android client Barcode Scanner. It is the basis of many other third-party open source projects. -
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SiYuan
Build your eternal digital garden
SiYuan is a local-first personal knowledge management system that supports complete offline use, as well as end-to-end encrypted synchronization. Fuse blocks, outlines, and bidirectional links to build your eternal digital garden. SiYuan, the only important core concept is Content block. The content block can be formed through the formatting format, so that we can organize our thoughts and knowledge at the block-level granularity, and it is also convenient for reading and outputting long content. Built-in 20+ types of block-level elements and 10+ span-level elements. Rich elements meet common typesetting needs, and more specialized needs can be extended through widget blocks. Going into block focus, let's focus more on the content of the current block. All blocks support zoom-in focus, easily switch in context with breadcrumb navigation. Editing of large documents is also possible. Through dynamic loading technology, large documents with millions of words can be edited smoothly. -
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SymmetricDS
Database Replication, Filtered Synchronization, and Transformation
SymmetricDS is database replication and file synchronization software. It is a platform-independent, web-enabled, and database-agnostic synchronization tool. With initial data load, bidirectional change data capture, conflict resolution, and data transformation, it is a comprehensive data replication solution. -
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Collabora Online
Collabora Online is a collaborative online office suite
Collabora Online is a powerful online office suite that you can integrate into your own infrastructure or access via one of our trusted hosting Partners. Your digital sovereignty is our priority. We provide you with all the tools to keep your data secure, without compromising on features. Collabora Online’s text document editor provides a true WYSIWYG editing experience, making visualizing your document layout incredibly easy. Open any document, add comments and track changes from anywhere, with anyone. Format and style your pages with endless options. From simple spreadsheets and calculations to advanced formulas, Calc can do it all. Create giant spreadsheets with up to 16k columns, and add charts, sparklines, and hyperlinks. Benefit from conditional formatting or data validation with online cooperation. With powerful multi-column sort and filter options, you can make your data work for you. -
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Mapbox GL JS
Interactive, thoroughly customizable maps in the browser
Mapbox GL JS is a JavaScript library that uses WebGL to render interactive maps from vector tiles and Mapbox styles. It is part of the Mapbox GL ecosystem, which includes Mapbox Mobile, a compatible renderer written in C++ with bindings for desktop and mobile platforms. Mapbox GL JS is part of the cross-platform Mapbox GL ecosystem, which also includes compatible native SDKs for applications on Android, iOS, macOS, Qt, and React Native. Mapbox provides building blocks to add location features like maps, search, and navigation into any experience you create. To get started with GL JS or any of our other building blocks, sign up for a Mapbox account. In addition to GL JS, this repository contains code, issues, and test fixtures that are common to both GL JS and the native SDKs. Mapbox GL JS v2 enables 3D mapping with elevated terrain, customizable skies and atmospheric lighting, a new camera, and performance enhancements. -
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Etar Calendar
Android open source calendar
Etar is an open-source material-designed calendar made for everyone. -
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Binary Eye
Yet another barcode scanner for Android
Binary Eye is an open-source, ad-free barcode and QR code scanning application for Android that emphasizes simplicity, broad format support, and user privacy by not storing or sending scanned data off the device. The app, inspired by the Zebra Crossing (ZXing) scanning library, supports a wide range of barcode formats such as QR Code, EAN, UPC, PDF417, Data Matrix, and more, and also offers barcode generation capabilities built into the same interface. BinaryEye works in both portrait and landscape orientations with a modern Material Design interface, making it intuitive to scan or create codes easily on nearly any Android device. Because it is open source under the MIT license, developers and users can inspect or extend the codebase, and the project doesn’t include ads, trackers, or unnecessary permissions, focusing on utility and user freedom. -
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Habitica
A habit tracker app which treats your goals like a Role Playing Game
Get motivated to achieve your goals. Now is the time to have fun while completing your tasks! Join more than 4 million Habiticans and improve your life one task at a time. Habitica is a free habit building and productivity app that takes your real life as a game. With in-game rewards and punishments to motivate you and a strong social network to inspire you, Habitica can help you achieve your goals to be healthy, hardworking, and happy. Stay responsible by following and maintaining your Habits, Daily Tasks and To-Do Tasks with habitica's mobile apps and the website, both easy to use. Cross off tasks to level up your Avatar, and unlock in-game features like battle armor, mysterious pets, magical abilities, and even missions! Fight monsters with other Habitica users! Use the Gold you earn to buy in-game or custom rewards, like watching an episode of your favorite TV series. -
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Cashew
An app created to help users manage a budget and purchases
Cashew is a minimalist personal finance and budgeting app built with Flutter, designed to help individuals track expenses and income easily. It emphasizes simplicity and clarity, offering straightforward interfaces for adding transactions, categorizing them, and monitoring balances. Users can visualize their financial activity with charts and summaries, giving them insight into spending patterns. Because it is open source, developers can modify or extend it with features like recurring transactions, custom categories, or integrations. Cashew is cross-platform, so the same codebase runs smoothly on Android and iOS. Its design is focused on giving control to users without unnecessary complexity, making it suitable as a learning project as well as a practical budgeting tool. -
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Simple Calendar
A simple calendar with events, customizable widgets and no ads
The most handy calendar out there. Manage your events and reminders easily. Simple Calendar Pro is a really flexible calendar with many event related options. It offers powerful repetition rules, optional CalDAV synchronization, ics file handling and much more. Top notch design ensures the best possible user experience. You will get familiar with it really quickly. You can create new events really quickly by predefining default values, or by duplicating existing events. There are many views you can choose from, depending on your preference. No matter if you want to see just 1 day or 1 year, this app supports it. Personalize your experience by changing any app color. You can even change the apps' icon color to make sure it matches your home screen. The Pro one already has many new features including time zone support, attendees and email type of reminders in CalDAV synced events, then many other bugfixes and stability improvements. -
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Alkaa
Open-source app to manage your tasks quickly and easily
Alkaa (begin, start in Finnish) is a to-do application project to study the latest components, architecture and tools for Android development. The project evolved a lot since the beginning is available on Google Play. Alkaa architecture is strongly based on the Hexagonal Architecture by Alistair Cockburn. The application also relies heavily in modularization for better separation of concerns and encapsulation. This type of architecture protects the most important modules in the app. To achieve this, all the dependency points to the center, and the modules are organized in a way that the more the module is in the center, more important it is. -
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Simple Dialer
A handy phone call manager with phonebook, number blocking
A lightweight app for handling your calls, no matter where you are. Comes with a handy call log for easy call initiation. You can now easily dial numbers using this amazing dial pad without any problem as this dial pad gives you different things to ease up your overall experience while making a call. Stay connected with your friends and family while having a smooth experience in this app. With bigger numbers and letters, it is now easier for you to see and dial numbers. Using this dial-pad, you can access your contacts and maintain a call log with ease. There is a quick dialpad at your service too, with smart contact suggestions. It supports letters too. You can use the quick search to find your favorite contacts not just in the contact list, but also in the call history. Call log entries can be removed one by one, but it can also be cleared out at once. You can easily block phone numbers to avoid unwanted incoming calls. -
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Simple Time Tracker
Simple app that tracks time.
Simple app that helps track how much time you spend on all the useless activities in the world. -
21
Mindwtr
A complete Getting Things Done (GTD) productivity system for desktop a
Mindwtr: The Privacy-First GTD System Mindwtr is a Getting Things Done (GTD) productivity tool designed for "Mind Like Water." It runs completely offline—no accounts, no tracking, and no subscriptions. The Core GTD Workflow Capture: Instantly offload thoughts to your Inbox. Clarify: Process tasks rapidly with the built-in "2-Minute Rule" timer. Organize: Sort tasks by Contexts (@work, @home), Areas, and Projects. Reflect: Keep your system trustworthy with a guided Weekly Review. Engage: Filter Next Actions by energy level or time available. Powerful Features Local-First: Your data lives on your device (SQLite). You own it 100%. Flexible Sync: Sync privately via File System (Syncthing, iCloud) or WebDAV (Nextcloud). Focus View: A unified dashboard for your calendar events and next actions. Kanban Boards: Visualize projects with drag-and-drop columns. Stop managing your data. Start getting things done. -
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GLScene
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
GLScene is an OpenGL based 3D library for Delphi, C++Builder and Lazarus. It provides visual components and objects allowing description and rendering 3D scenes in graphic applications. Update of newer versions of the trunk has been moved to https://github.com/glscene -
23
Crater
Free & Open Source Invoice App for Freelancers & Small Businesses
Crater is an open-source web & mobile invoicing app made especially for freelancers and small businesses. It's the complete invoicing solution you need, allowing you to track expenses and payments, calculate taxes, and create estimates and invoices. As both a web and a mobile app, Crater allows you to manage your invoices and keep track of everything even on the go. Crater's web application is made with Laravel & VueJS, while the mobile apps are built using React Native. Crater is a completely free and open source professional invoicing solution. Make the smart choice for managing your budding business's transactions with Crater. -
24
Droidrun
Powerful framework for controlling Android and iOS devices
Droidrun is a native mobile agent platform that gives users natural-language control over real Android devices to automate any mobile app workflow, from logins and bookings to purchases and data extraction, including access to mobile-only content behind app logins, rate limits, or platform restrictions. Its cloud offering lets users spin up agents in seconds with preinstalled apps, run tasks in parallel across multiple devices, and compose complex, multi-step conditional workflows using conversational commands; recorded workflows can be auto-replayed at high speed. Credential management securely stores login information once for reuse, and the system integrates with existing stacks like LLMs, N8N, or custom scripts to inject real app execution into broader automation pipelines. Developers get SDK examples (including Python integrations with Gemini or Ollama) for embedding Droidrun into their tooling. -
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QrAndBarcodeScanner
An Android app for scanning QR codes and barcodes
QR & Barcode Scanner is an ad-free, open-source scanner app. It uses the ZXing scanning library.
