Softwr

AI · head to head

Aider vs Flowable

A

Aider

AI

AI pair programming in your terminal

From
Free
Rated
-
Full reviewWebsite
Flowable logo

Flowable

Automation Integration

Apache 2.0 BPMN, CMMN and DMN engine from the team that originally built Activiti

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Aider requires comfort working in a terminal rather than a graphical IDE; Flowable the open source engine is genuinely usable but ships without the modelling studio, work application and admin console, so an open source deployment means building your own user interfaces before anyone can use it.
  • They diverge on capability: Aider covers Multi-LLM support, Flowable covers BPMN 2.0 engine.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Aider and Flowable actually diverge.

Attributes where Aider and Flowable differ
AttributeAiderFlowable
Pricing modelopen-sourcequote
Platformsmac, linux, windows, apiLinux, Windows, Docker, Kubernetes, Cloud
CategoryAIAutomation Integration
Founded2023Unknown

Identical on both: starting price (Free), 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 Aider

  • Multi-LLM support
  • Repository mapping
  • Git integration
  • Voice-to-code
  • Lint and test automation
  • Image and web context
  • Free provider access
  • Editor file-watching

Only in Flowable

  • BPMN 2.0 engine
  • CMMN case management
  • DMN decision tables
  • Spring Boot integration
  • Modelling studio
  • Task and case application
  • REST APIs
  • History and audit

What people use each for

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

Aider

  • Editing an existing codebase from the terminalnot Flowable
  • Pairing with an LLM on a new projectnot Flowable
  • Automating git-committed code changesnot Flowable
  • Working across many programming languagesnot Flowable
  • Bringing your own LLM API key to a coding workflownot Flowable

Flowable

  • An insurer automating claims handling where each case follows a different path and BPMN alone cannot express itnot Aider
  • A bank embedding process orchestration inside an existing Spring Boot estate rather than buying a separate platformnot Aider
  • A team leaving Activiti or jBPM that wants the same API family with active commercial maintenancenot Aider
  • A regulated organisation needing complete process history and decision table audit trails for supervisorsnot Aider

Where each one falls short

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

Aider

  • Requires comfort working in a terminal rather than a graphical IDE
  • Has no hosted or managed version, so users must supply and pay for their own LLM API access separately
  • Depends heavily on the chosen underlying model's quality, so results vary by which LLM is configured
  • Lacks a built-in autonomous multi-step task runner comparable to agent-style products

Flowable

  • The open source engine is genuinely usable but ships without the modelling studio, work application and admin console, so an open source deployment means building your own user interfaces before anyone can use it.
  • It expects Java engineering capacity; teams looking for a business-user low-code automation tool will find the modelling and deployment cycle far too technical.
  • Enterprise pricing is not published and is quoted per deployment, leaving buyers without a benchmark against Camunda or IBM alternatives.
  • The Activiti fork left three engines with related APIs and overlapping documentation in circulation, and search results routinely return advice for the wrong one.
  • Flowable AG is a small Swiss company relative to its competitors, so the partner network, training market and pool of engineers with production experience are all limited outside Europe.

Pricing, plan by plan

Aider

Free

No published plan breakdown. See the Aider review.

Flowable

Free
  • Flowable Open SourceFree
    • Apache 2.0 licensed BPMN, CMMN and DMN engines
    • Embeddable Java library or standalone apps
    • No modelling studio or enterprise applications
  • Flowable Enterprise$undefined/year
    • Modelling studio, work application and admin console
    • Connectors, forms and advanced identity management
    • Support with SLA and version maintenance

Which should you pick?

Choose Aider if

  • You need multi-llm support.
  • You want to start without paying.
  • You work on mac, linux, windows, api.
  • You also want repository mapping.
Aider review

Choose Flowable if

  • You need bpmn 2.0 engine.
  • You want to start without paying.
  • You work on Linux, Windows, Docker, Kubernetes, Cloud.
  • You also want cmmn case management.
Flowable review

Questions people ask

Is Aider or Flowable better?
Neither clearly leads. Aider starts at Free and Flowable at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Aider or Flowable?
Aider starts at Free and Flowable at Free.
Does Aider or Flowable run on more platforms?
Aider runs on mac, linux, windows, api. Flowable runs on Linux, Windows, Docker, Kubernetes, Cloud.
Can I use Aider for free?
Both have a free tier, so you can try either at no cost before committing.
What is Aider best used for?
Aider is most often used for editing an existing codebase from the terminal, pairing with an llm on a new project, automating git-committed code changes, working across many programming languages. Of those, editing an existing codebase from the terminal and pairing with an llm on a new project are not what Flowable is typically brought in for.
What can Aider do that Flowable cannot?
Aider covers Multi-LLM support, Repository mapping, Git integration, Voice-to-code. Flowable covers BPMN 2.0 engine, CMMN case management, DMN decision tables, Spring Boot integration.

Answered from the vendors’ own pages

Aider: Is Aider free to use?

Aider itself is free and open source, released under the Apache 2.0 license. Users must separately supply and pay for API access to the LLM they choose to use with it.

Source
Flowable: Is Flowable open source?

Yes, the BPMN, CMMN and DMN engines are Apache 2.0. The modelling studio and enterprise applications are commercial.

Aider: Which LLMs can I use with Aider?

Aider connects to OpenAI, Anthropic, Gemini, GROQ, DeepSeek, Ollama, Azure, Cohere, xAI, GitHub Copilot, Vertex AI, Amazon Bedrock, OpenRouter and most other LLM providers via API keys.

Source
Flowable: How does it relate to Activiti and jBPM?

The same core developers built jBPM, then Activiti, then forked Activiti in 2016 to create Flowable.

Aider: Can I use Aider for free without paying for an LLM API?

Yes, Aider can be used at no cost through OpenRouter's free model access (subject to daily usage limits) or Google's Gemini 2.5 Pro Exp, which the docs note performs well without a paid API key.

Source
Flowable: What does Flowable Enterprise cost?

Nothing is published. It is quoted per deployment by the vendor.

Aider: How does Aider handle version control?

Aider automatically stages and commits each change it makes to a connected git repository, generating a descriptive commit message for every edit so changes stay reviewable and reversible.

Source
Flowable: Why choose it over Camunda?

CMMN case management is a first-class engine, which matters when work is exception-driven rather than a fixed sequence.

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