Communication & Collaboration · head to head
Flock vs RudderStack

Flock
Communication & Collaboration
Organized team communication platform
- From
- Free
- Rated
- -

RudderStack
Automation & Integration
The open-source customer data platform
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Flock the Starter plan only makes the most recent 10,000 messages searchable and caps public channels at 10; 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
- They diverge on capability: Flock covers Team chat, RudderStack covers Data collection.
Where they differ
Only the attributes on which Flock and RudderStack actually diverge.
| Attribute | Flock | RudderStack |
|---|---|---|
| Pricing model | subscription | usage-based |
| Platforms | Web, Windows, Macos, Ios, Android | Web, Self-hosted |
| Category | Communication & Collaboration | Automation & Integration |
| Founded | 2014 | 2018 |
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 Flock
- Team chat
- Channels
- Threads
- File sharing
- Polls
- Integrations
- Mobile apps
- Slack
Only in RudderStack
- Data collection
- Event tracking
- Audience segmentation
- Warehouse ingestion
- Real-time sync
- Data transformation
- Privacy controls
- 200+ destinations
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 RudderStack
- Running polls, to-dos and reminders inside a chat workspacenot RudderStack
- Video conferencing and screen sharing for small teamsnot RudderStack
RudderStack
- Collecting event data from apps and websites and routing it to warehouses and toolsnot Flock
- Building a warehouse first customer data pipelinenot 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
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
Pricing, plan by plan
Flock
Free- FreeFree
- Unlimited chats
- Channels
- File sharing
- Pro$5/month
- Everything in Free
- Advanced search
- API access
RudderStack
Free- Open SourceFree
- Self-hosted
- Community support
- Cloud$100/month
- Cloud hosted
- Email support
- Enterprise$500/month
- Dedicated support
- Advanced features
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.
Choose RudderStack if
- You need data collection.
- You want to start without paying.
- You work on Web, Self-hosted.
- You also want event tracking.
Questions people ask
- Is Flock or RudderStack better?
- Neither clearly leads. Flock starts at Free and RudderStack at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Flock or RudderStack?
- Flock starts at Free and RudderStack at Free.
- Does Flock or RudderStack run on more platforms?
- Flock runs on Web, Windows, Macos, Ios, Android. RudderStack runs on Web, Self-hosted.
- Can I use Flock for free?
- Both have a free tier, so you can try either at no cost before committing.
- 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 RudderStack is typically brought in for.
- What can Flock do that RudderStack cannot?
- Flock covers Team chat, Channels, Threads, File sharing. RudderStack covers Data collection, Event tracking, Audience segmentation, Warehouse ingestion. Both handle GDPR, Cloud deployment, Web support.
Related pages
More on RudderStack
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- RudderStack vs Zapier Plus
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