I had three todo list apps on my phone when I missed a client deadline last year. One was for work tasks, one for personal, and one I'd downloaded the week before and already forgotten about. None of them had the deadline. The task was sitting in a thread I'd told myself I'd move "later."
That's the real problem with this category. Every one of these apps captures tasks, sets reminders, and syncs across your phone and laptop. What almost none of them change is how you actually manage your work.
So I ran a real test. I spent six weeks trying 12 to-do list apps, using each one as my main task manager for long enough to see whether the habit stuck. Personal tasks, work deadlines, recurring reminders, and the stuff that falls through the cracks at 11 PM. I was testing whether I still had the thing open in week two.
7 of them are worth your time.
A to-do list app lets you capture, organize, and track personal tasks in one place. The simple version is a list you check off. The better ones add due dates, reminders, and cross-device sync, so your list travels with you from your desk to the grocery store.
Say you have a dentist appointment, a proposal due Friday, and a grocery run. A todo list app handles all three in one place. The appointment gets a reminder, the proposal gets a due date, and the groceries live in their own list you pull up at the store.
Unlike a project manager (Asana or Trello), todo apps are built for individuals. You're tracking your own work, and not just assigning tasks to teammates or managing sprint dependencies. If you're one person trying to stay on top of what to do next, a todo list app is the right tool. A project manager is overkill for that.

A good todo list app needs to capture tasks fast, remind you in a way that works for you, and sync reliably across your devices. The free plan should be worth using, and the app should feel at home on your platform. Get those five things right, and the rest is personal preference.
Here's what separates the ones that stick:

Before downloading anything, I spent time on Reddit. Threads like "what's your favorite todo list app?" have dozens of answers from people who've tried everything and switched three times. The pattern was consistent: people quit an app if they can’t build a habit around it, no matter how many features it has.
Four things decided whether an app made this list:
That's what I tested for, and only 7 of the 12 earned a spot.
Here's why 5 tools didn’t make it:
Todoist is a to-do list app that helps you organize daily tasks, manage projects, and work with others. It is available on iOS, Android, Windows, macOS, and the web. The app is easy to use and lets you add tasks using simple, natural language.


The free plan caps you at five active projects. Custom reminders ("remind me 30 minutes before") require Pro. Automatic reminders fire for free when you schedule a date and time, but the precise control is paywalled. Five projects go fast if you run any kind of structured system.
Free plan available. Pro is $7/user/month. Business for teams is $10/user/month. Pro unlocks 300 projects, custom reminders, a calendar view, and Todoist's full AI suite.
TickTick is a task manager that bundles more into one app than anything else on this list. Tasks, habits, a Pomodoro timer, a full calendar view, and an Eisenhower Matrix, all in one place. Available on iOS, Android, Mac, Windows, Web, and Apple Watch.


The free plan caps at nine lists, with 99 tasks per list. That sounds generous until you try to run any real system. Full calendar integration, including Google Calendar sync, requires Premium. If you plan to use TickTick as more than a casual list, you'll hit the ceiling fast.
Free plan available. Premium is $4.99/month. Annual billing brings it down to $35.99/year (a promo rate; the regular price is $49.99). No separate team tier, and collaboration features are included in Premium, which makes it a solid value if you share lists with others.
Microsoft To Do is a free, cloud-based task management app that helps you organize your daily work, personal lists, and reminders across all your devices. It runs on the web, Windows, iOS, and Android, and connects directly with Outlook, Teams, and Microsoft 365 Planner.


It works well only if you're inside the Microsoft ecosystem. The app lacks a calendar view and location-based reminders, and collaboration is basic. If you use Gmail and Google Calendar, the Outlook integration, the app's main selling point, gives you almost nothing.
Completely free with a Microsoft account.
Google Tasks is a free task manager built into every Google account. It lives as a side panel inside Gmail, Google Calendar, Google Chat, and Google Drive, so you never need to open a separate app. Available on Web, iOS, and Android.

Outside the Google ecosystem, it has almost nothing to offer. You cannot filter tasks, assign priorities, or add tags. Collaboration is basic. If your work does not run through Gmail and Google Calendar, there is little reason to pick this over Todoist or TickTick.
Completely free with a Google account.
Apple Reminders is a free task manager built into every Apple device. It runs on iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro, and syncs across all of them via iCloud. Available on the web through iCloud.com, but that version is limited compared to the native apps.


Apple Reminders only exists inside the Apple ecosystem. Windows and Android users have no native client, and the iCloud.com web version covers the basics but little else. If anyone you share tasks with is not on Apple, the collaboration stops working the moment they try to open the list.
Completely free with an Apple ID.
Things is a task manager for iPhone, iPad, Mac, Apple Watch, and Apple Vision Pro, made by Cultured Code, a small team based in Stuttgart, Germany. It has won the Apple Design Award twice.


Things has no collaboration features. You cannot share a list, assign a task to someone, or let another person view your projects. It is built entirely for individual use. If shared lists are part of how you work, Things is the wrong pick.
One-time purchase per platform. iPhone: $9.99, iPad: $19.99, and Mac: $49.99. Things Cloud sync is free. A 15-day free trial is available for Mac.
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Any.do is a task manager with a built-in calendar view available on iOS, Android, Web, and desktop. It has been around since 2011 and has over 40 million users. The free plan covers unlimited tasks, one-time and basic recurring reminders, calendar sync, and the daily planner. Sharing a list with someone else requires the Family or Workspace plans.


The desktop app is noticeably weaker than the mobile version. If most of your work happens on a Mac or PC, the experience does not match what you get on your phone. Advanced recurring reminders and location alerts also require Premium.
Free plan available. Premium is $7.99/month. Family plan covers up to four members for $9.99/month.
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The right todo list app is the one that fits where you already spend your day. Switching platforms adds friction before it removes any. The fastest shortcut is to start with what connects to your existing tools, then layer in features if you need them.
Here's how to narrow it down:
If you'd rather not manage a list at all, Lindy works differently. It's an AI teammate that lives in Slack and on your phone; tell it what needs doing (follow up on an email, schedule a meeting, update your CRM) and it handles the task instead of adding it to a list.
Todoist is the best todo list app for most people because it runs on every platform, has the fastest natural language input, and has a free plan that covers basic use. TickTick is the better pick if you want a built-in habit tracker and Pomodoro timer in the same place. Apple users should also consider Things.
Yes, several todo list apps are completely free with no feature limits. Microsoft To Do and Google Tasks are the strongest options. Everything is unlocked with a free account. Apple Reminders is also free on Apple devices. Todoist and TickTick both have free tiers, but they restrict reminders and calendar features behind a paywall.
A todo list app is built for one person tracking their own work, whereas a task manager adds team features like assignments, dependencies, Kanban boards, and project timelines. Asana, Trello, and Jira are task managers. Todoist and TickTick are todo list apps. If you're managing your own tasks, a todo app is usually enough.
Todoist is better for people who want a clean, fast task manager with the best natural language input across every platform. TickTick is better if you want a habit tracker, Pomodoro timer, and calendar view in one app without paying for extra tools. For pure task capture, Todoist wins. For an all-in-one setup, TickTick wins.
The best todo list apps for iPhone are Apple Reminders and Things. Both are purpose-built for iOS and integrate with Siri, widgets, and the Apple ecosystem natively. Todoist is the best cross-platform option if you also work on Android or Windows. TickTick is worth a look if you want a built-in Pomodoro timer.
Yes, most todo list apps work offline for basic task capture and viewing. Todoist, TickTick, Things, and Apple Reminders all sync once you reconnect. Google Tasks caches recent tasks but needs a connection to sync. Microsoft To Do works offline for viewing and checking off tasks. Always test offline behavior before committing to any app.
