A to-do app is the software category with the highest abandonment rate in history. Almost everyone has downloaded three of them, loaded each with an ambitious life plan, and quietly returned to a txt file or their memory within a month. The apps are rarely the problem. But the right one removes friction, and the wrong one adds it.
On Windows, three names come up again and again: Microsoft To Do, Todoist, and TickTick. They look similar in screenshots and diverge the moment you live in them. Here is the honest version of each.
Microsoft To Do
Microsoft To Do is the free, no-drama option. It syncs with your Microsoft account, integrates with Outlook tasks, and has a "My Day" view that asks one useful question each morning: what matters today?
The design is deliberately simple — lists, due dates, reminders, recurring tasks, file attachments, and not much else. There is a dark mode, a pinned list for favorites, and decent keyboard shortcuts, which is more than some free apps bother with. For people inside the Microsoft ecosystem, that simplicity is the feature. There is nothing to configure, nothing to pay, and syncing just happens in the background without a second thought.
The trade-offs: natural-language input (type "report friday" and have it understood) is limited, project-style organization is basic, and there is little beyond simple lists. If your ambitions grow to sub-tasks, boards, and views, it runs out of room. It is a notepad with reminders, and it is honest about that.
Todoist
Todoist is the veteran of the category, and it shows in the details. Its killer trick is natural-language input: type "pay rent every 1st starting November" and it builds the recurring task correctly. Projects, labels, filters, and priorities give serious list-keepers real structure, and it syncs everywhere with a reputation for reliability.
The trade-off is the pricing model. The free tier is genuinely usable for basic lists, but reminders and some filters sit behind a subscription — an ongoing cost that stings when competitors bundle reminders for free. And the power features can tempt you into maintaining a task system instead of doing tasks, which is the classic trap of this entire genre.
TickTick
TickTick is what you get when a to-do app keeps absorbing neighbors: tasks plus a calendar view, a built-in Pomodoro timer, habit tracking, and notes. For people who want one app to cover scheduling and tasks, it is a strong package, and notably it puts calendar and reminder features in the free tier where Todoist charges.
The trade-offs: breadth has a cost in focus. The interface carries more moving parts, and some of the best features (more list folders, calendar views, duration settings) land behind its own subscription. If you just want a list, it can feel busy. And if you already use a calendar app, parts of TickTick will duplicate it.
So which one?
- Want free and simple, possibly with Outlook: Microsoft To Do.
- Want the most refined capture and long-term reliability, and accept a subscription: Todoist.
- Want tasks, calendar, and habits in one place: TickTick.
A blunt piece of advice from someone who has abandoned all three at least once: the deciding factor is where your tasks naturally arrive. If you live in Outlook, To Do wins by default. If you think in projects and filters, Todoist. If you mix tasks with time-blocking, TickTick. Pick the one that matches the way you already work, write tomorrow's three tasks tonight, and give any of them two weeks before judging it.
And if none of them sticks? That is usually a sign the list is too long, not that the app is too weak. Every tool here can hold five tasks and remind you about them. The hard part was never the software.
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