Notion vs Todoist vs Obsidian: Which App Fits a Busy, Scattered Brain?

Search for "best productivity app" and three names come up again and again: Notion, Todoist and Obsidian. All three have passionate fans. All three have free versions. And all three can either transform how you work or become one more abandoned app on your phone.

The problem is that most comparisons treat them as if they do the same job. They don't. They're three different kinds of tool, built for three different kinds of work. Choosing the wrong one is like trying to hammer a nail with a tape measure. It isn't a bad tool; it's the wrong one for the job.

This guide explains what each app is really for, who it suits, where it frustrates people, and how to choose, especially if your mind is busy, creative and easily overloaded.

What each app is really built for

Todoist: the task manager

Todoist does one thing and does it very well: it manages tasks. You add a task, give it a date, and it reminds you when it's due. That focus is its greatest strength.

What it does well:

• Fast capture. You can add tasks in seconds from your phone, computer or browser, so things don't slip out of your head.
• Natural language dates. Type "Call the bank tomorrow at 10am" or "Pay rent every month on the 1st" and Todoist understands the date and repeats it automatically.
• Projects, priorities and labels to group and sort tasks without much setup.
• Clean "Today" and "Upcoming" views, so you only see what matters now.
• Apps on almost every device, which keep your list in sync.

Where it falls short:

• It isn't built for long notes, documents or planning big projects in detail.
• It can quietly become an endless list if you add everything and never review it.
• Some features are only available on paid plans, so check what the free plan includes.

Best for: people who forget things, people who feel overwhelmed by too many open loops, and anyone whose main problem is "I keep dropping balls."

Notion: the all-in-one workspace

Notion is less like an app and more like a set of building blocks. You can create pages, lists, tables, calendars, boards and wikis, and link them all together. People use it to run whole businesses, plan weddings, manage content calendars and track habits.

What it does well:

• Flexibility. If you can imagine a system, you can probably build it in Notion.
• Databases that can be viewed as tables, boards, calendars or timelines, which is excellent for projects with many moving parts.
• Templates. Thousands of free and paid templates mean you don't have to start from scratch.
• Everything in one place: notes, tasks, documents and plans, so you're not juggling several apps.
• Sharing and collaboration, which make it good for teams and families.

Where it falls short:

• The blank page problem. Flexibility can be paralysing. Many people spend hours building the "perfect system" instead of doing the work.
• Quick task capture is slower than in a dedicated task app.
• It can feel heavy and slow on older phones or poor internet connections.

Best for: people who manage projects, run a small business or ministry, plan content, or want one home for everything, and who enjoy setting up systems.

Obsidian: the thinking tool

Obsidian is a note-taking app built around one powerful idea: linking notes together, the way your brain links ideas. Over time, your notes become a web of connected thoughts, often called a "second brain."

What it does well:

• Linked notes. Type double square brackets to link one note to another. Ideas start connecting in ways a folder never could.
• Your notes are plain files on your own device. They're private, fast, and readable by other apps, even if Obsidian disappeared.
• Graph view shows how your ideas connect, which many creative people find inspiring.
• Plugins add almost any feature you can think of, from calendars to task lists.
• Free to use, with optional paid add-ons for syncing between devices and publishing notes online.

Where it falls short:

• A steeper learning curve than the other two. It rewards people who like to tinker.
• Task management isn't built in properly; it relies on plugins or simple checklists.
• Syncing between phone and computer takes extra setup or a paid add-on.

Best for: writers, researchers, students, teachers, preachers and anyone whose work is mostly thinking: collecting ideas, connecting them and turning them into something new.

Side-by-side comparison

• Main job: Todoist manages tasks; Notion organises projects and information; Obsidian connects notes and ideas.
• Learning curve: Todoist is easy; Notion is medium; Obsidian is steeper.
• Speed of capture: Todoist is fastest; Obsidian is quick for notes; Notion is slower.
• Best for overwhelm: Todoist, because it shows only what's due.
• Best for big projects: Notion.
• Best for ideas and writing: Obsidian.
• Privacy: Obsidian stores files on your device; Todoist and Notion store your data in the cloud.
• Free option: all three have one. Check each app's website for current plans, because features and prices change.

How to choose: three questions

1. What is your biggest problem right now?

• "I forget things and drop balls." → Todoist.
• "My projects are messy and scattered across emails, notes and chats." → Notion.
• "I have lots of ideas but can't find them or turn them into anything." → Obsidian.

2. Do you enjoy building systems?

Be honest. If setting up templates and databases sounds fun, Notion or Obsidian will reward you. If it sounds exhausting, choose Todoist and start using it in five minutes.

3. How do you work during the day?

If you're on the move and need to capture things on your phone, Todoist is the smoothest. If you sit at a computer for long stretches, Notion and Obsidian come into their own.

Simple starter setups for each app

The biggest mistake with all three apps is building something complicated on day one. Start with these minimal setups and add more only when you need it.

Todoist in 10 minutes

1. Create three projects: Work, Home, Someday.
2. Add everything from a brain dump to the Inbox.
3. Give a date only to tasks that genuinely need to happen on a certain day.
4. Each morning, open the Today view and choose your top three (you can use priority levels to mark them).
5. Once a week, clear the Inbox and look through Someday.

Notion in 15 minutes

1. Create one page called Home Base.
2. Inside it, add a simple task list (a database with "Status" and "Due date").
3. Add a second page called Projects, with one page per active project.
4. Add a third page called Notes and Ideas.
5. Resist templates with dozens of sections until you've used this basic setup for at least two weeks.

Obsidian in 15 minutes

1. Create a new vault (a folder of notes) on your computer.
2. Make a note called Inbox for quick capture.
3. Create one note per idea, project or topic, and link related notes with double square brackets.
4. Turn on the built-in Daily notes feature and write a short entry each day.
5. Explore plugins only after you're comfortable with plain notes and links.

Who might be better off without each app

Being honest about who shouldn't use each tool helps you avoid wasted weeks.

• Skip Todoist if your main need is long notes, documents or knowledge management, because you'll outgrow it quickly.
• Skip Notion if you're already overwhelmed and tend to tinker endlessly with setups. Its flexibility can become a distraction.
• Skip Obsidian if you want something that works perfectly on your phone straight away with no setup, or if you need to collaborate closely with a team.

Free alternatives worth knowing

If none of the three feels right, these are popular options many people use. Check each app's website for current features and pricing:

• Your phone's built-in notes and reminders apps: simple, free and already installed.
• Google Keep: quick notes and checklists that sync across devices.
• Microsoft To Do: a straightforward free task manager.
• Trello: visual boards with cards, good for projects with stages.
• A paper notebook: still one of the most reliable systems ever invented. See our planner layouts guide.

How to switch apps without losing your mind

If you decide to move from one app to another:

1. Do a full brain dump first so nothing important lives only in the old app.
2. Move only active tasks and current projects. Archive the rest.
3. Give yourself a two-week trial before deciding the new app is better.
4. Don't run two task apps in parallel for long; it splits your attention.
5. Accept "good enough." No app is perfect. The best one is the one you open every day.

Can you use more than one?

Yes, and many people do. A common, simple combination is:

• Todoist for tasks: everything with a "do" attached.
• Notion or Obsidian for everything else: project plans, notes, ideas and reference.

The rule that keeps it from becoming chaos: each type of information has one home. Tasks live in one place. Notes live in one place. Never both.

The trap to avoid: "productivity procrastination"

Here's a warning, especially for busy, creative minds. Switching apps, watching setup videos and building the perfect dashboard can feel productive. Often it's just a more sophisticated way of avoiding the actual work.

A good test: if you've spent more time setting up your system this week than using it, simplify. The best app is the one that gets out of your way.

Our recommendation

• If you're overwhelmed and just want relief: start with Todoist. Do a 5-minute brain dump, put the tasks in Todoist with dates, and use its Today view every morning.
• If you run projects, a business, a team or a ministry: try Notion, but start with a simple template rather than building from scratch.
• If you're a writer, teacher or thinker drowning in ideas: try Obsidian. Start with one note per idea and link generously.

Whichever you choose, use the free version for two weeks before paying for anything. You'll know by then whether it fits how your mind works.

And remember: no app can fix a system. The tool only holds the plan. The plan itself, capturing, sorting, choosing and finishing, is what makes the difference. That system is what our book, Your Brain Is a Workshop, Not a Warehouse, is all about.

Frequently asked questions

Which is better, Notion or Todoist?

They do different jobs. Todoist is better for managing tasks quickly and getting reminders. Notion is better for organising projects, notes and information in one flexible workspace. Many people use Todoist for tasks and Notion for everything else.

Is Obsidian better than Notion?

Obsidian is better for private, connected note-taking and writing, with notes stored as files on your own device. Notion is better for projects, databases, sharing and collaboration. If your work is mainly thinking and writing, try Obsidian; if it's managing projects, try Notion.

Which productivity app is best for ADHD?

There's no single best app. Many people with busy, distractible minds prefer simple tools with fast capture and a clear "today" view, like Todoist, because complex setups can become a distraction. The best app is the one you'll actually open every day.

Are Notion, Todoist and Obsidian free?

All three offer free options, with paid plans or add-ons for extra features. Features and prices change often, so check each app's website for current details before deciding.

Can I use Notion, Todoist and Obsidian together?

Yes, but keep each type of information in one place. For example, tasks in Todoist and notes in Obsidian or Notion. Using too many apps for the same job leads to confusion.

Should I use a digital app or a paper planner?

Both work. Apps are great for reminders and capturing on the go; paper is calmer and better for focused planning. Many people combine a phone app for capture with a paper planner for daily and weekly planning.