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Scheduling & Booking · head to head

Acuity Scheduling vs Slack

Acuity Scheduling logo

Acuity Scheduling

Scheduling & Booking

Scheduling made simple

From
$16/month
Rated
-
Full reviewWebsite
Slack logo

Slack

All industries

Where work happens

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Slack has a free tier, so it costs nothing to try first.
  • Each has a real cost: Acuity Scheduling starter tier limited to 1 calendar only; Slack 90-day message history limit on free plan results in important conversations disappearing
  • They diverge on capability: Acuity Scheduling covers Online booking, Slack covers Channels.

Where they differ

Only the attributes on which Acuity Scheduling and Slack actually diverge.

Attributes where Acuity Scheduling and Slack differ
AttributeAcuity SchedulingSlack
Starting price$16/monthFree
Pricing modelsubscriptionUnknown
Free tierNoYes
PlatformsWebWeb, iOS, Android, macOS, Windows, Linux
CategoryScheduling & BookingAll industries
Founded20032009

Identical on both: user rating (Not yet rated).

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 Acuity Scheduling

  • Online booking
  • Appointment types
  • Calendar sync
  • Payment processing
  • Email reminders
  • Client self-scheduling
  • Packages & memberships
  • Timezone detection

Only in Slack

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

Both cover

  • Zoom
  • HIPAA
  • SOC2

What people use each for

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

Acuity Scheduling

  • Client self-scheduling with automated time zone conversionnot Slack
  • HIPAA-compliant scheduling for healthcare practitionersnot Slack
  • Multi-location scheduling with multiple staff membersnot Slack
  • Membership, package sales, and gift certificate managementnot Slack

Slack

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

Where each one falls short

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

Acuity Scheduling

  • Starter tier limited to 1 calendar only
  • SMS/text reminders, memberships, and gift certificates require Standard or Premium tier
  • HIPAA compliance (BAA signature) exclusive to Premium tier at $49/month
  • Custom API and CSS access, and Acuity branding removal require Premium tier

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

Pricing, plan by plan

Acuity Scheduling

$16/month

No published plan breakdown. See the Acuity Scheduling review.

Slack

Free

No published plan breakdown. See the Slack review.

Which should you pick?

Choose Acuity Scheduling if

  • You need online booking.
  • You also want appointment types.
Acuity Scheduling review

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

Questions people ask

Is Acuity Scheduling or Slack better?
Neither clearly leads. Acuity Scheduling starts at $16/month and Slack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Acuity Scheduling or Slack?
Slack has a free tier; the other does not. Paid plans start at $16/month for Acuity Scheduling and Free for Slack.
Does Acuity Scheduling or Slack run on more platforms?
Acuity Scheduling runs on Web. Slack runs on Web, iOS, Android, macOS, Windows, Linux.
Can I use Slack for free?
Yes. Slack has a free tier, so you can try it without paying. Acuity Scheduling starts at $16/month.
What is Acuity Scheduling best used for?
Acuity Scheduling is most often used for client self-scheduling with automated time zone conversion, hipaa-compliant scheduling for healthcare practitioners, multi-location scheduling with multiple staff members, membership, package sales, and gift certificate management. Of those, client self-scheduling with automated time zone conversion and hipaa-compliant scheduling for healthcare practitioners are not what Slack is typically brought in for.
What can Acuity Scheduling do that Slack cannot?
Acuity Scheduling covers Online booking, Appointment types, Calendar sync, Payment processing. Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing. Both handle Zoom, HIPAA, SOC2.

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
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
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
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
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Related pages

More on Acuity Scheduling

More on Slack

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