Open Source Android To-Do Lists Apps

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.

Omni-Notes is a powerful open-source note-taking application for Android designed to be both smart and simple. It has a clean and simple Material Design interface and is packed with plenty of smart features. These include image, audio and generic file attachment, a To-do list, Google Now integration, numerous widgets and so much more. Omni-Notes takes note-taking to a whole new level, making it more convenient and integrated. It's an ideal note-taking application particularly for old Android phones without such apps, giving users an updated look and experience when taking down notes.

Lifeograph combines powerful features with a clean and thoughtfully designed interface. Your data stays on your device, and built-in encryption keeps privacy at the core. With WYSIWYG editing, your entries always appear in their final form. Integrated data extraction tools transform your journal entries into dynamic tables and charts.

A basic PDA function written for Android-based phones, this To Do app lets you categorize and prioritize checklists, assign due dates and alarms, set highly configurable recurring tasks, and add detailed notes to items.

Apps notes for Windows, iOS and Android, with direct local sync. The server is a Windows application so you need to run it for sync. If you want to leave the old date when editing a note then on mobile phones you need to click on the date and on the PC hold down the "Shift" key when you click on the done button. How to install and other things - https://github.com/r57zone/EasyNotes

Backlog Tracker is a free, open-source productivity application for managing unfinished work and activities that accumulate over time. It supports study assignments, work queues, games, habits, routines, and personalized task collections. Users can choose between count-based tracking for recurring workloads and one-time task tracking. Automatic growth schedules add pending items daily or on selected repeating days. These schedules can be paused when new work temporarily stops accumulating. The application estimates how long clearing a backlog will take based on a daily completion target. An accumulation predictor previews how the workload may change over time. Offline-first operation, JSON backups, and shareable templates make it practical for personal planning across Android, Windows, Linux, and macOS.

An Android client for the Todoist online task management service.

JTrac toolkit: WebServices , Eclipse Plug -in and for Android phones

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A simple, open source 'To-Do' application for Android, with an emphasis on minimalism. Available free on GooglePlay, for Android 4.0.1 and up.

A free and open-source, fully customizable task manager for Android. Full-featured version on about June 2019. For contributing, see file TODO inside the repository root. TaskMan is licensed under GNU GPL version 3 or later; see LICENSE file inside the repository root. Android is a trademark of Google LLC in the United States and/or in other countries.