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Blynk vs Slack Workflow Builder

Blynk logo

Blynk

Smart Home

IoT cloud platform with mobile app builder for connected devices

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 Blynk has a free tier, so it costs nothing to try first.
  • Each has a real cost: Blynk the free tier covers 5 devices, 1 user, 100,000 messages and one week of data retention; Slack Workflow Builder limited to Pro and above pricing tiers, requiring paid Slack subscription
  • They diverge on capability: Blynk covers Mobile App Builder, 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 Blynk and Slack Workflow Builder actually diverge.

Attributes where Blynk and Slack Workflow Builder differ
AttributeBlynkSlack Workflow Builder
Starting priceFreeOn request
Pricing modelfreemiumUnknown
Free tierYesNo
PlatformsIOS, Android, Web, Any IoT deviceWeb, macOS, Windows, iOS, Android
CategorySmart HomeRemote Work
Founded20122013

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 Blynk

  • Mobile App Builder
  • No-Code Interface
  • Real-Time Control
  • Cloud Storage
  • WebHooks
  • Mobile app
  • Cloud platform
  • IOS support

Only in Slack Workflow Builder

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

Both cover

  • REST API
  • Web support

What people use each for

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

Blynk

  • Connecting IoT hardware to a hosted dashboard and mobile appnot Slack Workflow Builder
  • Over-the-air firmware updates to fleets of devicesnot Slack Workflow Builder
  • Automations triggered by device datanot Slack Workflow Builder
  • White-label device apps for a hardware productnot Slack Workflow Builder
  • Prototyping connected devices before committing to infrastructurenot Slack Workflow Builder

Slack Workflow Builder

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

Where each one falls short

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

Blynk

  • The free tier covers 5 devices, 1 user, 100,000 messages and one week of data retention
  • Data retention is tiered all the way up, reaching 12 months only on Enterprise
  • Automations and webhooks are rationed, from 5 scenarios and 1 webhook on free to 100 or more on Production
  • Over-the-air update campaigns are capped by tier, at 2 shipments on free and Starter
  • Production plans run from $199 to $1,099 a month depending on device count

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

Blynk

Free
  • FreeFree
    • 5 devices, 1 user
    • 1 week data retention
    • 100,000 messages/month
  • Starter$29/month
    • 10 devices, 1 user
    • 1 month data retention
    • 10,000,000 messages/month
  • Prototype$99/month
    • 50 devices and users
    • 6 months data retention
    • Unlimited messages/month
  • Production$199/month
    • 100-1000 devices and users
    • 12 months data retention
    • Unlimited messages/month

Slack Workflow Builder

On request

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

Which should you pick?

Choose Blynk if

  • You need mobile app builder.
  • You want to start without paying.
  • You work on IOS, Android, Web, Any IoT device.
  • You also want no-code interface.
Blynk 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 Blynk or Slack Workflow Builder better?
Neither clearly leads. Blynk 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, Blynk or Slack Workflow Builder?
Blynk has a free tier; the other does not. Paid plans start at Free for Blynk and On request for Slack Workflow Builder.
Does Blynk or Slack Workflow Builder run on more platforms?
Blynk runs on IOS, Android, Web, Any IoT device. Slack Workflow Builder runs on Web, macOS, Windows, iOS, Android.
Can I use Blynk for free?
Yes. Blynk has a free tier, so you can try it without paying. Slack Workflow Builder starts at On request.
What is Blynk best used for?
Blynk is most often used for connecting iot hardware to a hosted dashboard and mobile app, over-the-air firmware updates to fleets of devices, automations triggered by device data, white-label device apps for a hardware product. Of those, connecting iot hardware to a hosted dashboard and mobile app and over-the-air firmware updates to fleets of devices are not what Slack Workflow Builder is typically brought in for.
What can Blynk do that Slack Workflow Builder cannot?
Blynk covers Mobile App Builder, No-Code Interface, Real-Time Control, Cloud Storage. Slack Workflow Builder covers Workflow builder, App integrations, Scheduled workflows, Conditional logic. Both handle REST API, Web support.

Answered from the vendors’ own pages

Blynk: How much does Blynk cost?

Free plan available; Starter is $29/month; Prototype is $99/month; Production ranges $199-1,099/month; Enterprise has custom pricing.

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
Blynk: What device and user limits does Blynk have?

Free plan supports 5 devices and 1 user. Starter supports 10 devices and 1 user. Prototype supports 50 devices and users. Production supports 100-1,000 devices and users. Enterprise offers custom limits.

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
Blynk: How long does Blynk retain data?

Free plan retains data for 1 week. Starter for 1 month. Prototype for 6 months. Production for 12 months. Enterprise can customize retention period.

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
Blynk: What message limits apply to Blynk plans?

Free plan includes 100,000 messages/month. Starter allows 10 million messages/month. Prototype and Production tiers include unlimited messages.

Source
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