Todoist and Wunderlist are most popular todo list apps basing on feature set, platform support, install base and general awareness among users

Todoist lets you manage your tasks anywhere. At home. At school. At work. Online. Offline. And on 13 platforms and devices. Collaborate on shared tasks. Access tasks everywhere.

Wunderlist is the easiest way to manage and share your to-do lists. Whether you’re planning an overseas adventure, sharing a shopping list with a loved one or running your very own business, Wunderlist is here to help you achieve great things.

2019. Microsoft is finally shutting down to-do list app Wunderlist

Microsoft has for years promised it would eventually shut down to-do list app Wunderlist, which it acquired in 2015, in favor of its own app, To Do — after it felt the latter was able to offer a competitive experience that included Wunderlist’s best features. Today, Microsoft is finally announcing a shut-down date for Wunderlist of May 6, 2020. After this date, Wunderlist to-dos will no longer sync, but users will still be able to import their content into Microsoft’s own To Do app.
2019. Todoist introduced task sections and imroved task page
Task lists in Todoist don’t have to be an endless list of checkboxes anymore. You can now create sections in your projects. You can then move tasks from one section to another, and collapse sections when you don’t need to see them. Labels are now sorted in two categories — your personal labels and shared labels with other co-workers. Todoist has also added a new task view on desktop and mobile that centralizes everything you can do related to a task. You can modify the due date and priority level, see comments, add labels and more. Even better, you can see all the subtasks associated with a specific task in this new view.
2017. Todoist launched integration with Google Calendar
Task manager Todoist is launching a deep two-way integration with Google Calendar. After hooking up your Todoist account with Google Calendar, your tasks are going to show up in your calendar if they have a due date. If you also entered a specific time of the day, you’ll see an event in your calendar. Recurring tasks will create multiple events. After that, you can click on your calendar events, edit them, move them around and everything will be synchronized back to Todoist. This way, you get a calendar view of your tasks… in your calendar. It’s also a good way to let other people add stuff to your calendar thanks to shared projects.
2016. Todoist applied machine learning to predict your task due dates
Popular task management service Todoist wants to help you reschedule your task and even out the work load using machine learning. There’s a new “Reschedule” button next to the overdue section. The service intelligently suggests new due dates for all these overdue tasks based on many different data points. It also works with unscheduled tasks. Todoist learns from you. For regular tasks, such as errands, Todoist remembers when you usually complete these tasks and assign them to the same day. You might also have a ton of upcoming tasks, so Todoist will make sure that all tasks are distributed evenly so that you can actually get stuff done. Todoist also knows when you stop working when you stop completing tasks. So the service won’t suggest to reschedule due tasks to today if it’s already late.
2016. Todoist adds new collaboration features
Task management service Todoist is going to completely overhaul its collaboration features so that Todoist Business version becomes a full-fledged task management service for enterprise users. From now all team members can see an activity log so that you can see your newly assigned tasks, new comments and more. It’s a bit more powerful than that as you can filter by dates, person, project and action. Think about it as a sort of feed for everything that’s happening across all your projects. Besides, you can now attach notes to a specific project. This could be useful if you want to write notes that are relevant across the entire projects as task comments will inevitably disappear once a task is marked as completed. And finally, the quick add feature is getting a revised user interface. This change will benefit all Todoist users and not just team members.
2015. Todoist redesigned its web app
Popular task management service Todoist has revamped its web app to make it a bit more modern with more whitespace and a flat design. The tick boxes are now round, and there are some subtle animations when you hover over icons. It looks more like the company’s iOS and Android apps, which is not a bad thing. Todoist also added natural language processing. Previously only available on mobile, this feature lets you add tasks with due dates in a single sentence. For example, you could write “Take out the trash every Sunday,” and Todoist will create a recurring task called “Take out the trash.” While natural language processing is particularly useful on mobile, bringing feature parity avoids confusion when you try to do something on the web and it’s only available on mobile. It is worth noting that this feature works in 14 different languages.
2015. Task manager Todoist launches new Android app

Popular task manager Todoist just received a major Android update with a completely overhauled user interface and very efficient new features. The app switched to Material design in order to make a more polished interface that fits in better in Google’s operating system. It also added natural language processing as well as intruitive gestures in order to manage your tasks. You can quickly add task with a due date in your current todo list as Todoist now parses natural date input. For instance, you could type “Buy milk tomorrow” or “Go for a run every Friday” and the app will automatically understand that it should create a task (“Buy milk” or “Go for a run”) with a single or recurring due date. Much like in Mailbox and its plethora of followers, you can swipe to the right to complete a task, and swipe to the left to reschedule it. Other things have been streamlined, such as adding collaborators, creating subtasks and more.
2015. Microsoft acquired To-Do app Wunderlist
Microsoft has acquired 6Wunderkinder GmbH, a Berlin-based startup behind the Wunderlist to-do list app (for between $100 million and $200 million). The purchase is part of Microsoft’s new effort to enhance its line of mobile apps. Wunderlist apps work on iOS as well as Android operating systems, both of which compete with Microsoft. It has recently started offering the mobile version of Microsoft Office free and acquired two makers of mobile apps: San Francisco-based Acompli Inc., which makes mobile-email applications, and Sunrise Atelier Inc., a New York-based startup behind the popular Sunrise mobile calendar application. Microsoft rebranded Acompli as Outlook for mobile. All three acquisitions point to an integration of Microsoft productivity tools, with an emphasis on mobile apps.
2015. Wunderlist adds integrations with Slack, Sunrise, HipChat and more
Popular to-do app Wunderlist is finally turning on an API so that people can create or modify Wunderlist tasks in other apps, and get alerts for Wunderlist tasks when they’re in those apps. The first wave of API partners — which have been playing around with a closed beta of the API since January, the company tells me — are Sunrise, Slack, OneNote, HipChat, Zapier and Scanbot. Next up will be an integration center — which sounds not unlike a similar feature you would get in a product like Slack giving users a very easy way of linking in whatever apps they choose to have feeding into Wunderlist. (Note that Wunderlist already has made a little bit of an inroad into integrations, too: in October, Dropbox became its first integration partner.)
2014. ToDoist arrives on Android Wear smartwatches
ToDoist is shrinking down its popular to-do app to fit on a smaller screen on Android Wear watches. ToDoist for Android Wear support is now included in the free app. Once installed on an Android Wear watch and wirelessly sync with a phone or tablet, ToDoist can be used to create tasks through voice commands by saying “OK Google, start Todoist. Add task.” These tasks will sync over to your connected Android phone and be added to your task list. Since ToDoist also synchs data through the cloud, any tasks added from the watch will be available through ToDoist on the web, other Android devices, Apple iOS, Microsoft Windows, Mac, Chrome and other supported platforms. ToDoist also includes location-based notifications for tasks. Your watch might vibrate, for example, if you have a task to pick up milk and you’re nearing the supermarket.