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Project Management · head to head

Clockwise vs Keil MDK

C

Clockwise

Project Management

Intelligent calendar management for teams

From
Free
Free plan
Yes
Visit ClockwiseFull review
Keil MDK logo

Keil MDK

Developer Tools

Microcontroller Development Kit for Arm-based devices

From
Free
Free plan
Yes
Visit Keil MDKFull review

The short version

  • Clockwise is an AI-powered calendar assistant.
  • Keil MDK is free; Clockwise starts at $6.75/mo.
  • Where Clockwise falls short: service discontinued and shut down on March 27, 2026.
  • Where Keil MDK falls short: pricing for Essential and Professional subscriptions not disclosed on primary site.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Clockwise and Keil MDK actually diverge.

Attributes where Clockwise and Keil MDK differ
AttributeClockwiseKeil MDK
CategoryProject ManagementDeveloper Tools

Identical on both: starting price (Free), pricing model (Freemium), free tier (Yes), platforms (Web).

Not yet recorded: founded for Keil MDK.

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
  • Slack
  • Zoom

Only in Keil MDK

Nothing recorded that Clockwise does not also cover.

What people use each for

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

Clockwise

  • Schedulingnot Keil MDK
  • Appointment bookingnot Keil MDK
  • Time trackingnot Keil MDK
  • Resource managementnot Keil MDK
  • Team coordinationnot Keil MDK

Keil MDK

  • Embedded software developmentnot Clockwise
  • ARM microcontroller programmingnot Clockwise
  • Professional development environmentsnot 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

Keil MDK

  • Pricing for Essential and Professional subscriptions not disclosed on primary site
  • Customers must contact Arm Developer Tools store for subscription rates

Pricing, plan by plan

Clockwise

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

Keil MDK

Free

No published plan breakdown. See the Keil MDK review.

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 Keil MDK if

  • You want to start without paying.
Keil MDK review

Questions people ask

Is Clockwise or Keil MDK better?
Neither clearly leads. Clockwise starts at Free and Keil MDK at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Clockwise or Keil MDK?
Clockwise starts at Free and Keil MDK at Free.
Does Clockwise or Keil MDK run on more platforms?
Both run on Web, so platform support will not decide this one for you.
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 Keil MDK is typically brought in for.
What can Clockwise do that Keil MDK cannot?
Clockwise covers Focus Time protection, Meeting optimization, Scheduling links, Team analytics.

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
Keil MDK: Does Keil MDK have a free version?

Yes, Keil MDK Community Edition is free for non-commercial projects. Essential and Professional editions are available as monthly or annual subscriptions.

Source
Clockwise: What integrations did Clockwise support?

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

Source
Keil MDK: How much do Keil MDK paid editions cost?

Specific pricing for Essential and Professional editions is not published on the main site. Rates are available from the Arm Developer Tools store or by contacting Arm sales.

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
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