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Developer Tools · head to head

Atlantis vs Close

Atlantis logo

Atlantis

Developer Tools

Runs Terraform plan and apply from pull request comments, self-hosted and free

From
Free
Free plan
Yes
Full reviewWebsite
Close logo

Close

Technology

The inside sales CRM of choice for startups & SMBs

From
$9/month
Free plan
No
Full reviewWebsite

The short version

  • Only Atlantis has a free tier, so it costs nothing to try first.
  • Each has a real cost: Atlantis there is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.; Close hidden costs beyond subscription: calling charges (~$0.02/minute), SMS usage fees, phone numbers ($1-5/month), AI call assistant ($50/month + $0.02/min transcription)
  • They diverge on capability: Atlantis covers Pull request plans, Close covers Built-in calling.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Atlantis and Close actually diverge.

Attributes where Atlantis and Close differ
AttributeAtlantisClose
Starting priceFree$9/month
Pricing modelOpen source, no licence feeUnknown
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, iOS, Android
CategoryDeveloper ToolsTechnology
FoundedUnknown2013

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 Atlantis

  • Pull request plans
  • Comment driven apply
  • Workspace locking
  • Policy checking
  • Multi-platform webhooks
  • Custom workflows

Only in Close

  • Built-in calling
  • Email automation
  • SMS messaging
  • Pipeline management
  • Lead management
  • Activity tracking
  • Reporting
  • Mobile app

What people use each for

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

Atlantis

  • Making Terraform review meaningful by putting the actual plan output in front of the approvernot Close
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot Close
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot Close
  • Enforcing Conftest policies as a blocking check before an apply can runnot Close

Close

  • Inside salesnot Atlantis
  • Outbound salesnot Atlantis
  • Lead managementnot Atlantis
  • Sales engagementnot Atlantis
  • Pipeline trackingnot Atlantis

Where each one falls short

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

Atlantis

  • There is no company, no service level agreement and no paid support at any price, and the six maintainers are volunteers with day jobs, which some risk committees will not accept for a component holding production cloud credentials.
  • The security surface is inherently sharp, because it is an internet-reachable webhook endpoint that executes applies with privileged credentials, gated by pull request comment authorisation that is coarse next to a real policy engine.
  • It is stateful, holding a working directory and lock database on local disk, so high availability and horizontal scaling are awkward and you own upgrades, webhook plumbing, secret rotation and the host itself.
  • It lacks the features that distinguish the commercial alternatives, with no native drift detection, no cost estimation, no managed state interface and no policy engine beyond the Conftest integration.
  • Terragrunt and monorepo layouts are not first-class, requiring hand-written custom workflows and repository configuration that becomes a growing maintenance burden as the number of repositories increases.

Close

  • Hidden costs beyond subscription: calling charges (~$0.02/minute), SMS usage fees, phone numbers ($1-5/month), AI call assistant ($50/month + $0.02/min transcription)
  • No built-in lead lists, company intelligence, or contact enrichment; must source leads separately
  • Limited marketing automation compared to competitors like HubSpot; lacks lead scoring and nurturing campaigns
  • Calling cost at scale can double effective monthly cost for high-volume SDR teams making 50+ calls per day
  • Limited customization of data model compared to Salesforce; cannot create fully custom objects or complex relationships

Pricing, plan by plan

Atlantis

Free
  • AtlantisFree
    • Apache-2.0, no usage limits and no seat count
    • No commercial edition and no paid support tier
    • Community support through GitHub and the CNCF Slack channel

Close

$9/month
  • Solo$9/month (annual)
    • 1 user only
    • 10,000 leads max
    • Calling, email, SMS
  • Essentials$35/month (annual)
    • Unlimited contacts
    • Team collaboration
    • 1,000 AI credits/month
  • Growth$99/month (annual)
    • Automation workflows
    • Power dialer
    • Bulk email
  • Scale$139/month (annual)
    • Role-based permissions
    • Predictive dialer
    • Unlimited recording

Which should you pick?

Choose Atlantis if

  • You need pull request plans.
  • You want to start without paying.
  • You work on Linux, Docker, Kubernetes, Self-hosted.
  • You also want comment driven apply.
Atlantis review

Choose Close if

  • You need built-in calling.
  • You work on Web, iOS, Android.
  • You also want email automation.
Close review

Questions people ask

Is Atlantis or Close better?
Neither clearly leads. Atlantis starts at Free and Close at $9/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Atlantis or Close?
Atlantis has a free tier; the other does not. Paid plans start at Free for Atlantis and $9/month for Close.
Does Atlantis or Close run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. Close runs on Web, iOS, Android.
Can I use Atlantis for free?
Yes. Atlantis has a free tier, so you can try it without paying. Close starts at $9/month.
What is Atlantis best used for?
Atlantis is most often used for making terraform review meaningful by putting the actual plan output in front of the approver, removing local applies and the credential sprawl that comes with every engineer holding production keys, getting pull request driven infrastructure without paying a per-user subscription for a hosted platform, enforcing conftest policies as a blocking check before an apply can run. Of those, making terraform review meaningful by putting the actual plan output in front of the approver and removing local applies and the credential sprawl that comes with every engineer holding production keys are not what Close is typically brought in for.
What can Atlantis do that Close cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. Close covers Built-in calling, Email automation, SMS messaging, Pipeline management.

Answered from the vendors’ own pages

Atlantis: Is there a company behind Atlantis?

No. It runs as a series of LF Projects under the Linux Foundation and is maintained by volunteers. There is no vendor to buy support from and no service level agreement.

Close: What are Close's pricing plans and what do they include?

Close offers four plans: Solo ($9-19/user/month), Essentials ($35-49), Growth ($99-109), and Scale ($139-149). All include calling, email, SMS, and Chloe AI agent access. Essentials adds unlimited contacts and team collaboration. Growth adds automation, power dialer, and custom activities. Scale adds role-based permissions and unlimited recording. Annual billing saves up to 50%.

Source
Atlantis: Is it a CNCF project?

No. It uses a channel in the CNCF Slack, which is often misread as membership, but the project sits under LF Projects rather than the CNCF.

Close: What are the hidden costs in Close's pricing beyond the subscription?

Close charges usage-based fees for calling (~$0.02 per minute), SMS charges per message, and phone number rentals ($1-5/month). The AI Call Assistant add-on costs $50/month plus $0.02 per minute for transcription. Heavy outbound calling teams can see their total costs increase 30-50% beyond the base seat price.

Source
Atlantis: Does it work with OpenTofu?

Yes, there is a dedicated integration guide alongside Terraform, and it also has configuration for working with hosted Terraform backends.

Close: What is Chloe, Close's AI sales agent, and what can it do?

Chloe is an AI sales agent built into Close that automatically calls leads, qualifies prospects through real conversations, and can book meetings while updating the CRM automatically. Chloe features AI-generated call summaries, transcripts, and action items automatically logged to contacts.

Source
Atlantis: What does it not do that a paid platform does?

Drift detection, cost estimation, a managed state and run interface, and a real policy engine. Atlantis does pull request plan and apply well and stops there.

Close: Does Close include lead lists, data enrichment, or contact information?

No. Close does not provide built-in lead lists, company intelligence, or contact enrichment features. Organizations must source leads separately or use third-party data providers. This differs from platforms like HubSpot which include integrated lead databases.

Source
Close: What communication features does Close include?

Close includes built-in calling with automatic call logging, email templates and bulk email capabilities, SMS messaging with tracking and automation, email syncing with Gmail, and automated follow-up workflows. All communication happens within the CRM platform.

Source
Close: Does Close have marketing automation capabilities?

Close's marketing automation features are limited compared to HubSpot. It includes basic email sequences, task reminders, and workflow automation, but lacks advanced lead scoring, nurturing campaigns, and detailed marketing analytics. Organizations requiring extensive marketing automation need separate tools.

Source
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