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Communication · head to head

Flock vs Slack Workflow Builder

Flock logo

Flock

Communication

Organized team communication platform

From
Free
Rated
-
Full reviewWebsite
Slack Workflow Builder logo

Slack Workflow Builder

Remote Work

Automation for team collaboration

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Flock has a free tier, so it costs nothing to try first.
  • Each has a real cost: Flock the Starter plan only makes the most recent 10,000 messages searchable and caps public channels at 10; Slack Workflow Builder limited to Pro and above pricing tiers, requiring paid Slack subscription
  • They diverge on capability: Flock covers Team chat, Slack Workflow Builder covers Workflow builder.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Flock and Slack Workflow Builder actually diverge.

Attributes where Flock and Slack Workflow Builder differ
AttributeFlockSlack Workflow Builder
Starting priceFreeOn request
Pricing modelsubscriptionUnknown
Free tierYesNo
PlatformsWeb, Windows, Macos, Ios, AndroidWeb, macOS, Windows, iOS, Android
CategoryCommunicationRemote Work
Founded20142013

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 Flock

  • Team chat
  • Channels
  • Threads
  • File sharing
  • Polls
  • Integrations
  • Mobile apps
  • Slack

Only in Slack Workflow Builder

  • Workflow builder
  • App integrations
  • Scheduled workflows
  • Conditional logic
  • Error handling
  • Notifications
  • Analytics
  • 1000+ apps

Both cover

  • GDPR
  • Cloud deployment
  • Web support

What people use each for

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

Flock

  • Team messaging with channels, direct messages and file sharingnot Slack Workflow Builder
  • Running polls, to-dos and reminders inside a chat workspacenot Slack Workflow Builder
  • Video conferencing and screen sharing for small teamsnot Slack Workflow Builder

Slack Workflow Builder

  • Workflow Automationnot Flock
  • Data Integrationnot Flock
  • Process Automationnot Flock
  • App Integrationnot Flock
  • API Connectivitynot Flock

Where each one falls short

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

Flock

  • The Starter plan only makes the most recent 10,000 messages searchable and caps public channels at 10
  • Starter storage is 5 GB for the entire team, against 10 GB per member on Pro and 20 GB per member on Enterprise
  • Starter allows a single team admin and a single approved domain
  • Group video calls and screen sharing require the Pro plan; Starter is limited to 1-1 video calls
  • Group video calls are capped at 20 participants even on Enterprise
  • Single Sign-On and Active Directory sync are Enterprise only
  • Enterprise is quote only, with no published rate, and is positioned for organisations with 100 or more members
  • Unlimited auto-join and announcement channels require Enterprise; Starter and Pro get one of each

Slack Workflow Builder

  • Limited to Pro and above pricing tiers, requiring paid Slack subscription
  • Maximum 15 conditional branches per workflow, limiting complex logic paths
  • Connectors must be explicitly configured per integration type
  • No native web interface for non-Slack users

Pricing, plan by plan

Flock

Free
  • FreeFree
    • Unlimited chats
    • Channels
    • File sharing
  • Pro$5/month
    • Everything in Free
    • Advanced search
    • API access

Slack Workflow Builder

On request

No published plan breakdown. See the Slack Workflow Builder review.

Which should you pick?

Choose Flock if

  • You need team chat.
  • You want to start without paying.
  • You work on Web, Windows, Macos, Ios, Android.
  • You also want channels.
Flock review

Choose Slack Workflow Builder if

  • You need workflow builder.
  • You work on Web, macOS, Windows, iOS, Android.
  • You also want app integrations.
Slack Workflow Builder review

Questions people ask

Is Flock or Slack Workflow Builder better?
Neither clearly leads. Flock starts at Free and Slack Workflow Builder at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flock or Slack Workflow Builder?
Flock has a free tier; the other does not. Paid plans start at Free for Flock and On request for Slack Workflow Builder.
Does Flock or Slack Workflow Builder run on more platforms?
Flock runs on Web, Windows, Macos, Ios, Android. Slack Workflow Builder runs on Web, macOS, Windows, iOS, Android.
Can I use Flock for free?
Yes. Flock has a free tier, so you can try it without paying. Slack Workflow Builder starts at On request.
What is Flock best used for?
Flock is most often used for team messaging with channels, direct messages and file sharing, running polls, to-dos and reminders inside a chat workspace, video conferencing and screen sharing for small teams. Of those, team messaging with channels, direct messages and file sharing and running polls, to-dos and reminders inside a chat workspace are not what Slack Workflow Builder is typically brought in for.
What can Flock do that Slack Workflow Builder cannot?
Flock covers Team chat, Channels, Threads, File sharing. Slack Workflow Builder covers Workflow builder, App integrations, Scheduled workflows, Conditional logic. Both handle GDPR, Cloud deployment, Web support.

Answered from the vendors’ own pages

Flock: Does Flock offer a free plan?

Yes, Flock's Starter plan is free and supports teams with 1-20 members, including 10,000 searchable messages and 5 GB storage.

Source
Slack Workflow Builder: Is Slack Workflow Builder included in all Slack plans?

No, Workflow Builder is only available in Slack Pro, Business+, and Enterprise plans. It is not included in the Free plan.

Source
Flock: What does Flock's Pro plan include?

The Pro plan supports teams with 20-100 members and offers unlimited messages, 10 GB per team member storage, and a 30-day free trial with no credit card required.

Source
Slack Workflow Builder: Can Workflow Builder connect to external applications?

Yes, Workflow Builder supports connectors that translate actions in Slack to instant results in third-party tools, allowing workflows to interact with your full application stack.

Source
Flock: How does Flock charge for external guests?

External guests are free for 90 days from date of invitation. After 90 days, guests are charged at the same rate as other team members.

Source
Slack Workflow Builder: What is the maximum complexity of Slack Workflows?

Workflows support conditional logic with up to 15 conditions, enabling complex decision paths for automation.

Source
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