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Automation Integration · head to head

Activiti vs Prefect

Activiti logo

Activiti

Automation Integration

Apache 2.0 BPMN engine under Hyland, from which Flowable and Camunda were forked

From
Free
Rated
-
Full reviewWebsite
Prefect logo

Prefect

Automation Integration

Python-first workflow orchestration that heals itself

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Activiti the last stable release was 8.2.0 in January 2024, and while release candidate builds continue, a two-year gap between stable versions is a real risk signal for a production dependency.; Prefect limited to Python-based workflows; other languages require API calls
  • They diverge on capability: Activiti covers BPMN 2.0 engine, Prefect covers Python function decorators.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Activiti and Prefect actually diverge.

Attributes where Activiti and Prefect differ
AttributeActivitiPrefect
Pricing modelOpen source, no licence feeFreemium with per-user and usage-based tiers
PlatformsLinux, Windows, Docker, KubernetesCloud, Self-hosted, VPC

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Automation Integration).

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 Activiti

  • BPMN 2.0 engine
  • Activiti Cloud
  • Modeler
  • Java and REST APIs
  • Pluggable persistence
  • Identity integration

Only in Prefect

  • Python function decorators
  • Automatic resilience
  • Flexible deployment
  • Observable execution
  • Multiple scheduling
  • Webhooks
  • Open-source core

What people use each for

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

Activiti

  • An Alfresco or Hyland content services deployment where Activiti is already the embedded workflow enginenot Prefect
  • A Java application that needs to embed a BPMN engine as a library under a permissive licencenot Prefect
  • An organisation that has ruled out Camunda 8 on licence grounds and needs an Apache 2.0 alternativenot Prefect
  • Document-centric approval workflows where the process engine sits inside the content management stack rather than beside itnot Prefect

Prefect

  • Orchestrating data pipeline workflows in Pythonnot Activiti
  • Managing ML model training and inference jobsnot Activiti
  • Building ETL and event-driven automationnot Activiti
  • Monitoring and alerting on workflow healthnot Activiti

Where each one falls short

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

Activiti

  • The last stable release was 8.2.0 in January 2024, and while release candidate builds continue, a two-year gap between stable versions is a real risk signal for a production dependency.
  • Both Camunda and Flowable forked away and took large parts of the contributor base with them, so the community, tutorials and third-party tooling around Activiti are much thinner than around either fork.
  • Commercial support is only realistically available by buying Hyland Alfresco subscriptions, so there is no way to pay for Activiti support on its own.
  • Activiti Cloud imposes a distributed architecture of several Spring Boot services plus Keycloak, which is heavy for teams who simply wanted an embeddable engine.
  • Documentation is dated and partly split between old Alfresco sites and Hyland Connect, and the transition between Activiti 6, 7 and 8 architectures makes much of the older material actively misleading.

Prefect

  • Limited to Python-based workflows; other languages require API calls
  • Hobby free tier severely limited for production use
  • Team plan billing per user scales quickly with team size
  • Less visual workflow builder compared to some competitors
  • Smaller ecosystem of pre-built connectors than alternatives

Pricing, plan by plan

Activiti

Free
  • ActivitiFree
    • Apache 2.0 licence
    • Embeddable Java library or Activiti Cloud services
    • No usage limits

Prefect

Free
  • HobbyFree
    • 2 users and 5 deployments
    • 500 minutes serverless monthly
    • 7-day run retention
  • Starter$100/month
    • 3 users and 20 deployments
    • 75 hours serverless compute
    • Bring-your-own infrastructure
  • Team$100/user/month
    • 4-8 users per plan tier
    • 100 deployments
    • 225 hours serverless monthly
  • Enterprise$null/custom
    • SSO and SAML authentication
    • Role-based access control
    • Multiple workspaces

Which should you pick?

Choose Activiti if

  • You need bpmn 2.0 engine.
  • You want to start without paying.
  • You work on Linux, Windows, Docker, Kubernetes.
  • You also want activiti cloud.
Activiti review

Choose Prefect if

  • You need python function decorators.
  • You want to start without paying.
  • You work on Cloud, Self-hosted, VPC.
  • You also want automatic resilience.
Prefect review

Questions people ask

Is Activiti or Prefect better?
Neither clearly leads. Activiti starts at Free and Prefect at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Activiti or Prefect?
Activiti starts at Free and Prefect at Free.
Does Activiti or Prefect run on more platforms?
Activiti runs on Linux, Windows, Docker, Kubernetes. Prefect runs on Cloud, Self-hosted, VPC.
Can I use Activiti for free?
Both have a free tier, so you can try either at no cost before committing.
What is Activiti best used for?
Activiti is most often used for an alfresco or hyland content services deployment where activiti is already the embedded workflow engine, a java application that needs to embed a bpmn engine as a library under a permissive licence, an organisation that has ruled out camunda 8 on licence grounds and needs an apache 2.0 alternative, document-centric approval workflows where the process engine sits inside the content management stack rather than beside it. Of those, an alfresco or hyland content services deployment where activiti is already the embedded workflow engine and a java application that needs to embed a bpmn engine as a library under a permissive licence are not what Prefect is typically brought in for.
What can Activiti do that Prefect cannot?
Activiti covers BPMN 2.0 engine, Activiti Cloud, Modeler, Java and REST APIs. Prefect covers Python function decorators, Automatic resilience, Flexible deployment, Observable execution.

Answered from the vendors’ own pages

Activiti: Is Activiti still maintained?

Yes, Hyland continues to publish builds, but the last stable release was 8.2.0 in January 2024.

Prefect: What is included in the Hobby free plan?

Hobby includes 2 users, 5 deployments, 500 minutes of serverless compute monthly, and 7-day run retention.

Source
Activiti: What is its relationship to Camunda and Flowable?

Both are forks of Activiti: Camunda in 2013 and Flowable in 2016, when core developers left Alfresco.

Prefect: What is the difference between Starter and Team plans?

Starter is $100/month for 3 users and 20 deployments. Team is $100 per user per month for 4-8 users and 100 deployments.

Source
Activiti: What licence is it?

Apache 2.0, which distinguishes it from Camunda 8’s source-available licence.

Prefect: Can I deploy Prefect in my own infrastructure?

Yes, Starter and higher plans support bring-your-own-compute infrastructure and VPC deployments.

Source
Activiti: Should I choose Activiti for a new project?

Only if the Apache licence or an existing Alfresco deployment is decisive. Flowable and Camunda have far larger ecosystems.

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