Automation & Integration · head to head
RudderStack vs Slack

RudderStack
Automation & Integration
The open-source customer data platform
- From
- Free
- Rated
- -
The short version
- Each has a real cost: RudderStack on the free plan data processing stops after a second consecutive overage rather than being billed, so exceeding 250,000 events twice breaks the pipeline; Slack 90-day message history limit on free plan results in important conversations disappearing
- They diverge on capability: RudderStack covers Data collection, Slack covers Channels.
Where they differ
Only the attributes on which RudderStack and Slack actually diverge.
| Attribute | RudderStack | Slack |
|---|---|---|
| Pricing model | usage-based | Unknown |
| Platforms | Web, Self-hosted | Web, iOS, Android, macOS, Windows, Linux |
| Category | Automation & Integration | All industries |
| Founded | 2018 | 2009 |
Identical on both: starting price (Free), free tier (Yes), 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 RudderStack
- Data collection
- Event tracking
- Audience segmentation
- Warehouse ingestion
- Real-time sync
- Data transformation
- Privacy controls
- 200+ destinations
Only in Slack
- Channels
- Direct messaging
- Voice & video calls
- Screen sharing
- File sharing
- Search
- Workflow builder
- Slack Connect
What people use each for
The jobs each tool is most often brought in to do.
RudderStack
- Collecting event data from apps and websites and routing it to warehouses and toolsnot Slack
- Building a warehouse first customer data pipelinenot Slack
Slack
- Team communicationnot RudderStack
- Project coordinationnot RudderStack
- Customer supportnot RudderStack
- Remote worknot RudderStack
- Cross-functional collaborationnot RudderStack
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
RudderStack
- On the free plan data processing stops after a second consecutive overage rather than being billed, so exceeding 250,000 events twice breaks the pipeline
- The free plan allows 250,000 events a month
- Growth starts at $265 a month for 1 million events, with volume sold in tiers up to 25 million
- Overage is charged as the gap to the next tier's price rather than per event, so a small excess costs a full tier step
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
RudderStack
Free- Open SourceFree
- Self-hosted
- Community support
- Cloud$100/month
- Cloud hosted
- Email support
- Enterprise$500/month
- Dedicated support
- Advanced features
Slack
FreeNo published plan breakdown. See the Slack review.
Which should you pick?
Choose RudderStack if
- You need data collection.
- You want to start without paying.
- You work on Web, Self-hosted.
- You also want event tracking.
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.
Questions people ask
- Is RudderStack or Slack better?
- Neither clearly leads. RudderStack starts at Free and Slack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, RudderStack or Slack?
- RudderStack starts at Free and Slack at Free.
- Does RudderStack or Slack run on more platforms?
- RudderStack runs on Web, Self-hosted. Slack runs on Web, iOS, Android, macOS, Windows, Linux.
- Can I use RudderStack for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is RudderStack best used for?
- RudderStack is most often used for collecting event data from apps and websites and routing it to warehouses and tools, building a warehouse first customer data pipeline. Of those, collecting event data from apps and websites and routing it to warehouses and tools and building a warehouse first customer data pipeline are not what Slack is typically brought in for.
- What can RudderStack do that Slack cannot?
- RudderStack covers Data collection, Event tracking, Audience segmentation, Warehouse ingestion. Slack covers Channels, Direct messaging, Voice & video calls, Screen sharing.
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.
SourceSlack: 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.
SourceSlack: 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.
SourceSlack: 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.
SourceRelated pages
More on RudderStack
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- Slack vs Loom
- Slack vs RingCentral Video
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- Slack vs Webex by Cisco
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- Slack vs Chatwork
- Slack vs Flock
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- Slack vs Grasshopper
- Slack vs Lark
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- Slack vs Quo
- Slack vs Rocket.Chat
- Slack vs Signal
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- Slack vs Textline

