Is Rootly or Fluentd better?

Neither clearly leads. Rootly starts at $20/user-month and Fluentd at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Rootly or Fluentd?

Fluentd has a free tier; the other does not. Paid plans start at $20/user-month for Rootly and Free for Fluentd.

Does Rootly or Fluentd run on more platforms?

Rootly runs on Web, Mobile, Slack, Microsoft Teams. Fluentd runs on Web, Api.

Can I use Fluentd for free?

Yes. Fluentd has a free tier, so you can try it without paying. Rootly starts at $20/user-month.

What is Rootly best used for?

Rootly is most often used for automate on-call and incident response workflows, run root cause analysis with ai assistance, track and improve mean time to mitigation (mttr), coordinate response across distributed teams. Of those, automate on-call and incident response workflows and run root cause analysis with ai assistance are not what Fluentd is typically brought in for.

What can Rootly do that Fluentd cannot?

Rootly covers AI SRE automation, Alert routing, On-call management, Incident response. Fluentd covers Log collection, Data parsing, Filtering and buffering, Event routing.

Logging · head to head

Rootly vs Fluentd

Rootly

Logging

AI-native incident management with automation, on-call, and root cause analysis

From: $20/user-month
Rated: -

Full review Website

Fluentd

Logging

Open Source Data Collector for Unified Logging

From: Free
Rated: -

Full review Website

The short version

Only Fluentd has a free tier, so it costs nothing to try first.
Each has a real cost: Rootly pricing higher than some competitors for basic features; Fluentd fluentd needs more than 60 MB of memory at runtime, against roughly 450 KB for Fluent Bit
They diverge on capability: Rootly covers AI SRE automation, Fluentd covers Log collection.

Where they differ

Only the attributes on which Rootly and Fluentd actually diverge.

Attributes where Rootly and Fluentd differ
Attribute	Rootly	Fluentd
Starting price	$20/user-month	Free
Pricing model	subscription	open-source
Free tier	No	Yes
Platforms	Web, Mobile, Slack, Microsoft Teams	Web, Api
Founded	2020	2011

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

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 Rootly

AI SRE automation
Alert routing
On-call management
Incident response
Call routing
AI meeting bot
Status pages

Only in Fluentd

Log collection
Data parsing
Filtering and buffering
Event routing
API
Webhooks
REST
Web support

What people use each for

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

Rootly

Automate on-call and incident response workflowsnot Fluentd
Run root cause analysis with AI assistancenot Fluentd
Track and improve Mean Time to Mitigation (MTTR)not Fluentd
Coordinate response across distributed teamsnot Fluentd
Learn from post-incident retrospectivesnot Fluentd

Fluentd

Unified log collection and routing from many sources to many destinationsnot Rootly
Parsing and transforming log records before forwardingnot Rootly
Aggregating logs from containers into Elasticsearch, S3 or a SIEMnot Rootly

Where each one falls short

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

Rootly

Pricing higher than some competitors for basic features
AI SRE features require separate contact-sales engagement
Learning curve for advanced automation features
Per-user pricing increases costs as team grows

Fluentd

Fluentd needs more than 60 MB of memory at runtime, against roughly 450 KB for Fluent Bit
Fluentd is built as a Ruby gem and depends on other gems, so a Ruby runtime is required
Its capability comes from over 1,000 external plugins rather than built in functionality, so each added input or output is a separate dependency
The Fluent Bit documentation states that cloud providers have switched from Fluentd to Fluent Bit for performance and compatibility and calls Fluent Bit the next generation solution

Pricing, plan by plan

Rootly

$20/user-month

Incident Response Essentials$20/user-month
- Response with Slack integration
- @Rootly AI Chat
- AI Similar Incidents detection
Incident Response Enterprise$undefined/custom
- All Essentials features
- Custom forms and incident types
- Private incidents
On-Call Essentials$20/user-month
- Alert grouping and routing
- Live call routing (1 phone number)
- Schedules and escalation policies
On-Call Enterprise$undefined/custom
- All Essentials features
- 5 phone numbers for call routing
- Unlimited schedules

Fluentd

Free

FreeFree
- Log collection
- Data parsing
- Filtering and buffering

Which should you pick?

Choose Rootly if

You need ai sre automation.
You work on Web, Mobile, Slack, Microsoft Teams.
You also want alert routing.

Rootly review

Choose Fluentd if

You need log collection.
You want to start without paying.
You work on Web, Api.
You also want data parsing.

Fluentd review

Questions people ask

Is Rootly or Fluentd better?: Neither clearly leads. Rootly starts at $20/user-month and Fluentd at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Rootly or Fluentd?: Fluentd has a free tier; the other does not. Paid plans start at $20/user-month for Rootly and Free for Fluentd.
Does Rootly or Fluentd run on more platforms?: Rootly runs on Web, Mobile, Slack, Microsoft Teams. Fluentd runs on Web, Api.
Can I use Fluentd for free?: Yes. Fluentd has a free tier, so you can try it without paying. Rootly starts at $20/user-month.
What is Rootly best used for?: Rootly is most often used for automate on-call and incident response workflows, run root cause analysis with ai assistance, track and improve mean time to mitigation (mttr), coordinate response across distributed teams. Of those, automate on-call and incident response workflows and run root cause analysis with ai assistance are not what Fluentd is typically brought in for.
What can Rootly do that Fluentd cannot?: Rootly covers AI SRE automation, Alert routing, On-call management, Incident response. Fluentd covers Log collection, Data parsing, Filtering and buffering, Event routing.

Answered from the vendors’ own pages

Rootly: How much does Rootly cost?

Rootly charges $20/user/month for both Incident Response and On-Call Essentials plans. Enterprise plans require contacting sales. Startups under 100 employees with less than $50M raised get up to 50% discount.

Source

Fluentd: How much does Fluentd cost?

Fluentd is free and open-source under the Apache 2 License from the Cloud Native Computing Foundation (CNCF). There are no subscription fees, licensing costs, or commercial pricing tiers.

Source

Rootly: What is Rootly AI SRE?

AI SRE is an advanced feature that provides automated root cause analysis, alert correlation with system changes, impact analysis, and remediation suggestions. Pricing requires contact with sales.

Source

Rootly: Does Rootly integrate with Slack?

Yes, Rootly natively integrates with Slack for incident response workflows, allowing teams to manage incidents directly in Slack.

Source

Rootly: Are there discounts for small companies?

Yes, startups under 100 employees or less than 25 employees can get special pricing up to 50% discount. Contact Rootly sales for details.

Source

Rootly vs Fluentd

Rootly

Fluentd

The short version

Where they differ

What each one covers

Only in Rootly

Only in Fluentd

What people use each for

Rootly

Fluentd

Where each one falls short

Rootly

Fluentd

Pricing, plan by plan

Rootly

Fluentd

Which should you pick?

Choose Rootly if

Choose Fluentd if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Rootly

More on Fluentd

Keep looking

Other head to heads