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All industries · head to head

Grammarly vs Todoist

Grammarly logo

Grammarly

All industries

Great writing, simplified

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: Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors; Todoist no built-in time tracking for tasks; requires third-party integration like Toggl
  • They diverge on capability: Grammarly covers Grammar checking, Todoist covers Natural language input.

Where they differ

Only the attributes on which Grammarly and Todoist actually diverge.

Attributes where Grammarly and Todoist differ
AttributeGrammarlyTodoist
PlatformsWeb, macOS, Windows, iOS, AndroidWeb, 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 Grammarly

  • Grammar checking
  • Spelling correction
  • Punctuation
  • Clarity suggestions
  • Engagement feedback
  • Delivery insights
  • Plagiarism checker
  • Citation generator

Only in Todoist

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

Both cover

  • Gmail
  • Slack

What people use each for

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

Grammarly

  • Email writingnot Todoist
  • Document editingnot Todoist
  • Academic writingnot Todoist
  • Business communicationnot Todoist
  • Content creationnot Todoist

Todoist

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

Where each one falls short

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

Grammarly

  • Occasional false positives and grammatically incorrect suggestions that can introduce errors
  • Privacy concerns about sending text to Grammarly's servers for analysis
  • AI capabilities sometimes produce hallucinations and fabricated citations that appear grammatically correct

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

Grammarly

Free
  • FreeFree
    • Basic grammar and spelling checks
    • Tone visibility
    • 100 AI prompts per month
  • Pro$12/month
    • Sentence rewrites
    • Tone adjustment
    • Plagiarism and AI detection

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 Grammarly if

  • You need grammar checking.
  • You want to start without paying.
  • You work on Web, macOS, Windows, iOS, Android.
  • You also want spelling correction.
Grammarly 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 Grammarly or Todoist better?
Neither clearly leads. Grammarly 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, Grammarly or Todoist?
Grammarly starts at Free and Todoist at Free.
Does Grammarly or Todoist run on more platforms?
Grammarly runs on Web, macOS, Windows, iOS, Android. Todoist runs on Web, iOS, Android, macOS, Windows.
Can I use Grammarly for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grammarly best used for?
Grammarly is most often used for email writing, document editing, academic writing, business communication. Of those, email writing and document editing are not what Todoist is typically brought in for.
What can Grammarly do that Todoist cannot?
Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions. Todoist covers Natural language input, Recurring tasks, Projects and sub-tasks, Labels and filters. Both handle Gmail, Slack.

Answered from the vendors’ own pages

Grammarly: Does Grammarly have a free version?

Yes, Grammarly offers a free tier with basic spelling, grammar, and punctuation checks, tone visibility, and 100 AI prompts per month. The Pro plan ($12/month annual) adds sentence rewriting, plagiarism detection, and 2,000 AI prompts.

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
Grammarly: What platforms does Grammarly work with?

Grammarly works across 1 million+ apps including Google Docs, Microsoft Word, Outlook, Slack, Gmail, and web browsers. It also integrates with productivity tools like Asana, Jira, Monday.com, Confluence, and HubSpot.

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
Grammarly: Can I use Grammarly offline?

Grammarly requires an internet connection to function, though the browser extension works with some offline text areas. For offline use, the desktop app and browser extensions sync when reconnected.

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
Grammarly: What is included in the Enterprise plan?

The Enterprise plan includes unlimited team members, dedicated support, custom roles and permissions, data loss prevention, bring-your-own-key encryption, and unlimited AI prompts. Pricing is custom and available by contacting sales.

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
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