To To-Do keep your life in sync. One app for family, work, and personal goals—with AI assistance and seamless sync across all your devices.
Cost / License
- Freemium
- Proprietary
Application types
Platforms
- Online
- Android
- iPhone
- Android Tablet
- iPad




sleek is described as 'Open-source (FOSS) todo manager based on the todo.txt syntax. It's available for Windows, MacOS and Linux' and is a todo list manager in the office & productivity category. There are more than 100 alternatives to sleek for a variety of platforms, including Android, Windows, Mac, iPhone and Web-based apps. The best sleek alternative is Super Productivity, which is both free and Open Source. Other great apps like sleek are Todoist, Tasks.org, Wekan and TickTick.
To To-Do keep your life in sync. One app for family, work, and personal goals—with AI assistance and seamless sync across all your devices.




TowDow is an open-source, cross-platform application designed for small and mid-sized teams to manage tasks, projects, and processes in one place. It allows you to create projects, assign tasks, set deadlines, and follow progress in real time across desktop and mobile devices.




Simple GTD application to manage your tasks and to-dos. Syncs with web server. Complete with the usual Inbox, Today, Next, Tomorrow, Scheduled and Someday "buckets" as most GTD programs have. You can also create Projects for tasks with multiple steps.




Clear is a colorful canvas for your thoughts, plans and goals. Here's what makes it uniquely fun and effective.




Zettel notes provides seamless private zettelkasten and markdown note taking experience with synchronization. It is provided free of cost, without ads and with no hidden permissions. No user data is collected.




ReDo is a minimalist and intuitive task manager built for things that need to happen again—and again. Whether it’s changing your toothbrush every 3 months, refreshing the cat litter once a week, or watering plants every 10 days, ReDo helps you stay on top of recurring tasks...




Plan combines all of your calendars, projects, tools, and documents into one intuitive place - the central hub for your work-life.




A simple application for creating and organizing task lists, offering essential features for efficient task management, similar to Notepad in its simplicity and functionality.




OpenTodoList is a todo list and note taking application. It is available for Linux, macOS and Windows as well as on Android. Your information can be shared across devices to keep everything up date date, where ever you go.




Mad Productivity offers a sleek and stylish but still work-focused take on task management. The native app provides note taking, to-dos, reminders and time tracking bundled in a fast and intuitive design.



A note-taking application and a to-do management system that is ridiculously simple, yet very advanced.
