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Developer Tools · head to head

Atlantis vs Tryton

Atlantis logo

Atlantis

Developer Tools

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

From
Free
Rated
-
Full reviewWebsite
Tryton logo

Tryton

ERP

Modular open source ERP in Python with a five year support window on major releases only

From
Free
Rated
-
Full reviewWebsite

The short version

  • 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.; Tryton ordinary series are supported for only one year, so any deployment not pinned to a long term support major version needs a funded upgrade project every twelve months, which is the largest hidden cost of running Tryton.
  • They diverge on capability: Atlantis covers Pull request plans, Tryton covers Modular installation.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Atlantis and Tryton actually diverge.

Attributes where Atlantis and Tryton differ
AttributeAtlantisTryton
PlatformsLinux, Docker, Kubernetes, Self-hostedWeb, Linux, Windows, macOS, Self-hosted
CategoryDeveloper ToolsERP

Identical on both: starting price (Free), pricing model (Open source, no licence fee), 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 Atlantis

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

Only in Tryton

  • Modular installation
  • Double entry accounting
  • Manufacturing
  • Inventory and supply chain
  • Sales and purchasing
  • Desktop and web clients
  • Multi-company
  • Project management

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 Tryton
  • Removing local applies and the credential sprawl that comes with every engineer holding production keysnot Tryton
  • Getting pull request driven infrastructure without paying a per-user subscription for a hosted platformnot Tryton
  • Enforcing Conftest policies as a blocking check before an apply can runnot Tryton

Tryton

  • A small European manufacturer that wants bills of materials and routings without a per user ERP subscriptionnot Atlantis
  • A company with in-house Python developers that intends to extend the data model rather than configure a closed productnot Atlantis
  • An organisation that will not adopt an open core product because it expects features to migrate to a paid edition over timenot Atlantis
  • A distributor needing multi-company books in one database with analytic accounting on topnot 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.

Tryton

  • Ordinary series are supported for only one year, so any deployment not pinned to a long term support major version needs a funded upgrade project every twelve months, which is the largest hidden cost of running Tryton.
  • There is no vendor to buy support from, only a list of independent service providers, so procurement teams that require a single accountable supplier with an SLA have to construct one themselves.
  • The module ecosystem is far smaller than Odoo or ERPNext, so region-specific tax rules, payroll and industry add-ons frequently have to be written rather than installed.
  • Out of the box reporting is thin and there is no built-in business intelligence layer, so most deployments end up exporting to an external tool to get management reporting.
  • Documentation and community discussion are functional but sparse compared with commercial ERPs, which lengthens implementation for teams that have not worked with Tryton before and makes hiring experienced consultants harder.

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

Tryton

Free
  • Self-hostedFree
    • GPL-3.0-or-later licence with no per user cost
    • All official modules included
    • Series released every six months

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 Tryton if

  • You need modular installation.
  • You want to start without paying.
  • You work on Web, Linux, Windows, macOS, Self-hosted.
  • You also want double entry accounting.
Tryton review

Questions people ask

Is Atlantis or Tryton better?
Neither clearly leads. Atlantis starts at Free and Tryton at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Atlantis or Tryton?
Atlantis starts at Free and Tryton at Free.
Does Atlantis or Tryton run on more platforms?
Atlantis runs on Linux, Docker, Kubernetes, Self-hosted. Tryton runs on Web, Linux, Windows, macOS, Self-hosted.
Can I use Atlantis for free?
Both have a free tier, so you can try either at no cost before committing.
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 Tryton is typically brought in for.
What can Atlantis do that Tryton cannot?
Atlantis covers Pull request plans, Comment driven apply, Workspace locking, Policy checking. Tryton covers Modular installation, Double entry accounting, Manufacturing, Inventory and supply chain.

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.

Tryton: What licence is Tryton under?

The platform and official modules are GPL-3.0-or-later. There is no paid enterprise edition.

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.

Tryton: How long is a release supported?

Series are released every six months and supported for one year. Major versions get five years of long term support, so pin to an LTS release unless you can fund annual upgrades.

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.

Tryton: Is there a hosted version from the project?

No. The foundation lists independent service providers who offer hosting and support commercially.

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.

Tryton: How does it differ from Odoo?

Tryton has no open core split, so there is no paid edition holding back features, but the module ecosystem and partner network are much smaller.

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