Softwr

All industries · head to head

Slack vs Todoist

Slack logo

Slack

All industries

Where work happens

From
Free
Rated
-
Full reviewWebsite
Todoist logo

Todoist

All industries

The world's #1 task manager and to-do list app

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Slack 90-day message history limit on free plan results in important conversations disappearing; Todoist no built-in time tracking for tasks; requires third-party integration like Toggl
  • They diverge on capability: Slack covers Channels, Todoist covers Natural language input.

Where they differ

Only the attributes on which Slack and Todoist actually diverge.

Attributes where Slack and Todoist differ
AttributeSlackTodoist
PlatformsWeb, iOS, Android, macOS, Windows, LinuxWeb, iOS, Android, macOS, Windows
Founded20092007

Identical on both: starting price (Free), pricing model (Unknown), free tier (Yes), user rating (Not yet rated), category (All industries).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Slack

  • Channels
  • Direct messaging
  • Voice & video calls
  • Screen sharing
  • File sharing
  • Search
  • Workflow builder
  • Slack Connect

Only in Todoist

  • Natural language input
  • Recurring tasks
  • Projects and sub-tasks
  • Labels and filters
  • Priority levels
  • Productivity tracking
  • Templates
  • Notifications

What people use each for

The jobs each tool is most often brought in to do.

Slack

  • Team communicationnot Todoist
  • Project coordinationnot Todoist
  • Customer supportnot Todoist
  • Remote worknot Todoist
  • Cross-functional collaborationnot Todoist

Todoist

  • Personal task managementnot Slack
  • Team project coordinationnot Slack
  • Goal trackingnot Slack
  • Habit buildingnot Slack
  • Daily planningnot Slack

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Slack

  • 90-day message history limit on free plan results in important conversations disappearing
  • Per-user pricing becomes expensive quickly for larger teams
  • Notification overload with 78% of employees feeling overwhelmed by notifications
  • Mobile app performance issues including lag and slow syncing
  • Huddles limited to 50 people and cannot be recorded
  • Requires dedicated video conferencing service for formal meetings and webinars

Todoist

  • No built-in time tracking for tasks; requires third-party integration like Toggl
  • Free plan limited to 5 personal projects only
  • No Gantt charts, resource allocation, or advanced project management features for large enterprises
  • Phone support not available; email and help center only
  • Calendar view and advanced filtering only available on paid plans

Pricing, plan by plan

Slack

Free

No published plan breakdown. See the Slack review.

Todoist

Free
  • BeginnerFree
    • 5 personal projects
    • Smart Quick Add
    • Task reminders
  • Pro$5/month
    • 300 personal projects
    • Calendar layout
    • Custom task reminders
  • Business$8/month
    • Everything in Pro
    • Shared team workspace
    • Up to 500 team projects

Which should you pick?

Choose Slack if

  • You need channels.
  • You want to start without paying.
  • You work on Web, iOS, Android, macOS, Windows, Linux.
  • You also want direct messaging.
Slack review

Choose Todoist if

  • You need natural language input.
  • You want to start without paying.
  • You work on Web, iOS, Android, macOS, Windows.
  • You also want recurring tasks.
Todoist review

Questions people ask

Is Slack or Todoist better?
Neither clearly leads. Slack starts at Free and Todoist at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Slack or Todoist?
Slack starts at Free and Todoist at Free.
Does Slack or Todoist run on more platforms?
Slack runs on Web, iOS, Android, macOS, Windows, Linux. Todoist runs on Web, iOS, Android, macOS, Windows.
Can I use Slack for free?
Both have a free tier, so you can try either at no cost before committing.
What is Slack best used for?
Slack is most often used for team communication, project coordination, customer support, remote work. Of those, team communication and project coordination are not what Todoist is typically brought in for.
What can Slack do that Todoist cannot?
Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing. Todoist covers Natural language input, Recurring tasks, Projects and sub-tasks, Labels and filters.

Answered from the vendors’ own pages

Slack: Does Slack have a free plan?

Yes, Slack offers a free plan indefinitely with no credit card required. Free users get 90-day message history, up to 10 app integrations, and 1:1 huddles.

Source
Todoist: Does Todoist work offline?

Basic editing and task management work offline, but advanced features like syncing reminders and shared updates require internet connectivity.

Source
Slack: What are Slack's pricing plans?

Slack offers Free, Pro ($7.25/user/month with annual billing), Business+ ($12.50/user/month), and Enterprise Grid (custom pricing). Monthly billing costs approximately 20% more than annual.

Source
Todoist: Does Todoist have a free plan and what does it include?

Yes, Todoist offers a free Beginner plan with 5 personal projects, Smart Quick Add, task reminders, flexible layouts, 3 filter views, and 1 week activity history. More advanced features require the Pro or Business plans.

Source
Slack: Does Slack support offline use?

Slack is a cloud-based platform and does not support robust offline work. Internet connectivity is required to access messages and collaborate.

Source
Todoist: Can I use Todoist on mobile devices?

Yes, Todoist offers native apps for both iOS and Android with over 30 million downloads. Mobile apps provide full task management functionality across devices.

Source
Slack: What integrations does Slack support?

Slack integrates with 43+ apps on average per team, including Google Drive, ChatGPT, Vercel, Asana, GitHub, and many others through their app marketplace.

Source
Todoist: What integrations does Todoist support?

Todoist integrates with over 100 apps including Slack, Google Calendar, Outlook, Microsoft Teams, Gmail, and Toggl Track. Additional integrations are available through Zapier, Make, and IFTTT automation platforms.

Source
Todoist: How much does Todoist cost?

Free plan is $0. Pro plan costs $5/month (billed annually) or $7/month (monthly billing). Business plan costs $8/month per user (annual) or $10/month per user (monthly), as of December 2025.

Source
ShareXLinkedInRedditWhatsAppEmail

Related pages

More on Slack

More on Todoist

Keep looking

Other head to heads