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Software · head to head

Clockwise vs Grammarly

C

Clockwise

Software

Intelligent calendar management for teams

From
Free
Rated
-
Full reviewWebsite
Grammarly logo

Grammarly

Software

Great writing, simplified

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Clockwise service discontinued and shut down on March 27, 2026; Grammarly occasional false positives and grammatically incorrect suggestions that can introduce errors
  • They diverge on capability: Clockwise covers Focus Time protection, Grammarly covers Grammar checking.

Where they differ

Only the attributes on which Clockwise and Grammarly actually diverge.

Attributes where Clockwise and Grammarly differ
AttributeClockwiseGrammarly
Pricing modelfreemiumUnknown
PlatformsWebWeb, macOS, Windows, iOS, Android
Founded20162009

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

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 Clockwise

  • Focus Time protection
  • Meeting optimization
  • Scheduling links
  • Team analytics
  • Conflict resolution
  • Google Calendar
  • Zoom
  • Asana

Only in Grammarly

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

Both cover

  • Slack

What people use each for

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

Clockwise

  • Schedulingnot Grammarly
  • Appointment bookingnot Grammarly
  • Time trackingnot Grammarly
  • Resource managementnot Grammarly
  • Team coordinationnot Grammarly

Grammarly

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

Where each one falls short

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

Clockwise

  • Service discontinued and shut down on March 27, 2026
  • All user data was deleted upon shutdown
  • Integration with Asana was removed during product lifecycle

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

Pricing, plan by plan

Clockwise

Free
  • FreeFree
    • Focus Time
    • Meeting optimization
    • Personal analytics
  • Teams$6.75/month
    • Team analytics
    • Flexible meetings
    • Admin controls

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

Which should you pick?

Choose Clockwise if

  • You need focus time protection.
  • You want to start without paying.
  • You also want meeting optimization.
Clockwise review

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

Questions people ask

Is Clockwise or Grammarly better?
Neither clearly leads. Clockwise starts at Free and Grammarly at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clockwise or Grammarly?
Clockwise starts at Free and Grammarly at Free.
Does Clockwise or Grammarly run on more platforms?
Clockwise runs on Web. Grammarly runs on Web, macOS, Windows, iOS, Android.
Can I use Clockwise for free?
Both have a free tier, so you can try either at no cost before committing.
What is Clockwise best used for?
Clockwise is most often used for scheduling, appointment booking, time tracking, resource management. Of those, scheduling and appointment booking are not what Grammarly is typically brought in for.
What can Clockwise do that Grammarly cannot?
Clockwise covers Focus Time protection, Meeting optimization, Scheduling links, Team analytics. Grammarly covers Grammar checking, Spelling correction, Punctuation, Clarity suggestions. Both handle Slack.

Answered from the vendors’ own pages

Clockwise: What happened to Clockwise?

Clockwise was acquired by Salesforce and shut down on March 27, 2026. The company announced the team was joining Salesforce to work on Agentforce. User data was deleted and prorated refunds were issued to paying customers.

Source
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
Clockwise: What integrations did Clockwise support?

Clockwise integrated with Google Calendar, Microsoft Outlook, Slack, and previously Asana (though this integration was discontinued).

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
Clockwise: What were Clockwise's key features?

Clockwise offered AI-powered focus time protection, automatic meeting buffers, Slack status sync, smart lunch breaks, and team calendar synchronization to optimize schedules and prevent burnout.

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
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
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