If you're looking for a free, unlimited organizational tool, ClickUp is a top contender. It's an all-purpose project management tool that combines tasks, goals and chat into one service. With its Free Forever plan, you get unlimited tasks and live chat, along with 100MB of storage, so it's a powerful tool for managing your to-do list and keeping tabs on your projects.
Another good option is Twos, a centralized information repository that lets you capture and track different aspects of your life, including lists, notes, tasks, reminders and calendar events. Twos is free with no data limits, and it's got AI-powered calendar integration and shareable lists, so it's a good way to consolidate your organization tools without breaking the bank.
If you want to anchor your organization in a calendar, check out Routine. The app integrates with a lot of services and has features like task management, AI-powered decision making and a planner-style calendar. It's free to sign up and use, with no obligation to upgrade to a paid subscription, so it's a good option for professionals and teams trying to get their daily routines in order.