Marketing · head to head
Customer.io vs Linear

Customer.io
Marketing
Data-driven messaging for teams getting started, scaling and beyond
- From
- On request
- Rated
- -
The short version
- Only Linear has a free tier, so it costs nothing to try first.
- Each has a real cost: Customer.io essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that; Linear no task-level Gantt chart; Timeline view is available for projects only, not individual issues
Where they differ
Only the attributes on which Customer.io and Linear actually diverge.
| Attribute | Customer.io | Linear |
|---|---|---|
| Starting price | On request | Free |
| Pricing model | subscription | Unknown |
| Free tier | No | Yes |
| Platforms | Web | Web, iOS, Android, macOS, Windows |
| Category | Marketing | Technology |
| Founded | Unknown | 2019 |
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 Customer.io
Nothing recorded that Linear does not also cover.
Only in Linear
- Fast, real-time sync
- Keyboard-first design
- Automatic issue tracking
- Cycles (sprints)
- Projects & milestones
- Custom workflows
- API & webhooks
- Built-in roadmaps
What people use each for
The jobs each tool is most often brought in to do.
Customer.io
No use cases recorded yet. See the Customer.io review.
Linear
- Issue management and triage, converting customer feedback into prioritized issuesnot Customer.io
- Strategic planning via initiatives, roadmaps, and PRDs from idea to launchnot Customer.io
- Agent-assisted development, with agents drafting docs and submitting pull requestsnot Customer.io
- Code review with structural diffs for human and agent outputnot Customer.io
- Progress monitoring via dashboards tracking cycle times and project healthnot Customer.io
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Customer.io
- Essentials plan caps at 5,000 profiles (people and objects) and 1,000,000 monthly emails, with overages billed at $0.12 per 1,000 emails beyond that
- Standard and Premium tiers show custom pricing only, and Enterprise is negotiated rate, so three of the four published tiers require a sales conversation
- Monthly plans accept credit card only; annual billing via invoice (ACH/wire) requires the annual commitment
Linear
- No task-level Gantt chart; Timeline view is available for projects only, not individual issues
- No native time-tracking or hour-logging feature
- No native Linux desktop app; official FAQ states it 'may come in the future but it's not on the roadmap for now'
- Free tier capped at 250 issues and 2 teams
Pricing, plan by plan
Customer.io
On requestNo published plan breakdown. See the Customer.io review.
Linear
Free- FreeFree
- Unlimited members
- 2 teams
- 250 issues
- Basic$10/month
- 5 teams
- Unlimited issues
- Unlimited file uploads
- Business$16/month
- Unlimited teams
- Private teams/guests
- Triage Intelligence
- Enterprise$undefined/month
- SAML/SCIM
- Granular admin controls
- Invoice/PO billing
Which should you pick?
Choose Customer.io if
Nothing in the data separates Customer.io from Linear on the points above - pick on price and on how each one feels to use.
Choose Linear if
- You need fast, real-time sync.
- You want to start without paying.
- You work on Web, iOS, Android, macOS, Windows.
- You also want keyboard-first design.
Questions people ask
- Is Customer.io or Linear better?
- Neither clearly leads. Customer.io starts at On request and Linear at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Customer.io or Linear?
- Linear has a free tier; the other does not. Paid plans start at On request for Customer.io and Free for Linear.
- Does Customer.io or Linear run on more platforms?
- Customer.io runs on Web. Linear runs on Web, iOS, Android, macOS, Windows.
- Can I use Linear for free?
- Yes. Linear has a free tier, so you can try it without paying. Customer.io starts at On request.
- What can Customer.io do that Linear cannot?
- Linear covers Fast, real-time sync, Keyboard-first design, Automatic issue tracking, Cycles (sprints).
Related pages
More on Customer.io
Other head to heads
- Customer.io vs Wrike
- Customer.io vs Buffer
- Customer.io vs Hootsuite
- Customer.io vs Moz
- Customer.io vs Ahrefs
- Customer.io vs Instapage
- Customer.io vs Iterable
- Customer.io vs Leadpages
- Customer.io vs Mailgun
- Customer.io vs MoEngage
- Customer.io vs Postmark
- Customer.io vs Typeform
- Customer.io vs Unbounce
- Customer.io vs Vimeo
- Customer.io vs Asana
- Customer.io vs ClickUp
- Customer.io vs Figma
- Customer.io vs Monday.com
- Customer.io vs Greenhouse
- Customer.io vs Notion
- Customer.io vs Amplitude
- Customer.io vs Datadog
- Customer.io vs PostHog
- Customer.io vs PyCharm
- Customer.io vs Sketch
- Customer.io vs Docker
- Customer.io vs Netlify
- Customer.io vs Okta
- Customer.io vs Aha!
- Customer.io vs Coda
- Customer.io vs Dashlane
- Customer.io vs GitHub
- Linear vs Wrike
- Linear vs Buffer
- Linear vs Hootsuite
- Linear vs Moz
- Linear vs Ahrefs
- Linear vs Instapage
- Linear vs Iterable
- Linear vs Leadpages
- Linear vs Mailgun
- Linear vs MoEngage
- Linear vs Postmark
- Linear vs Typeform
- Linear vs Unbounce
- Linear vs Vimeo
- Linear vs Asana
- Linear vs ClickUp
- Linear vs Figma
- Linear vs Monday.com
- Linear vs Greenhouse
- Linear vs Notion
- Linear vs Amplitude
- Linear vs Datadog
- Linear vs PostHog
- Linear vs PyCharm
- Linear vs Sketch
- Linear vs Docker
- Linear vs Netlify
- Linear vs Okta
- Linear vs Aha!
- Linear vs Coda
- Linear vs Dashlane
- Linear vs GitHub

