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Head-to-head · Business Rules Management Software

FlexRule Open vs DecisionRules

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score FlexRule Open #4 in Business Rules Management Software 8.9/10 Pricing on request ✓ 5 of 5 features Visit FlexRule Open
DecisionRules #6 in Business Rules Management Software 8.7/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit DecisionRules

FlexRule Open leads on 0 checks, DecisionRules on 0, and 6 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFlexRule Open · 8.9/10
  • Free planonly DecisionRules
  • Free trialonly DecisionRules
  • Most featuresFlexRule Open · 5 of 5

FlexRule Open scores higher on our rubric for business rules management software: 8.9 against 8.7 out of 10; our editors rank them #4 and #6.

FlexRule Open is the better fit for DMN-focused hybrid deployments. DecisionRules is the better fit for feature-rich teams wanting a free entry plan.

  • FlexRule Open fits best

    DMN-focused hybrid deployments

  • DecisionRules fits best

    Feature-rich teams wanting a free entry plan

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Side by side

Feature FlexRule Open 8.9/10 Visit ↗ DecisionRules 8.7/10 Visit ↗
At a glance
Editor score 8.9 8.7
Ranking #4 in Business Rules Management Software #6 in Business Rules Management Software
Best for DMN-focused hybrid deployments Feature-rich teams wanting a free entry plan
Pricing model Paid Free plan + paid
Starting price Pricing on request €291/mo
Free plan Not checked yet ✓ (best)
Free trial — 14 days
Deployment Cloud, Self-hosted, Desktop Cloud, Self-hosted
Platforms Web, Windows, Linux Web
Support Email, Tickets, Docs Tickets, Docs · 24/7
Built for Mid-market, Enterprise Small business, Mid-market, Enterprise
Features FlexRule Open 5/5 · DecisionRules 4/5
Decision tables ✓ ✓
Visual rule authoring ✓ ✓
Rule testing tools ✓ ✓
DMN support ✓ (best) Not checked yet
Natural-language rules ✓ ✓
Specs
Deployment options Hybrid Not checked yet
Execution access Both Both
Our review
Pros
  • DMN Conformance Level 3 with visual and low-code modeling
  • Simulation, debugging, and test scenarios for validating model changes
  • Cloud, on-premises, container, and serverless deployment options
  • Visual tables, trees, flows, testing, debugging, and version comparison
  • Free plan includes AI Assistant, database connectors, and 1,000 Solver API calls
  • Supports public cloud, private managed cloud, self-hosting, Docker, and Kubernetes
Cons
  • Pricing requires contacting sales
  • Integration coverage is limited compared with its deployment options
  • The feature set may exceed the needs of teams seeking simple rule automation
  • Free plan is limited to 1 user, 1 project, and 10 Business Rules & Flows
  • Lite starts at €291 per month or €3,500 per year
  • Premium pricing is custom and advanced security is reserved for that tier
Our verdict

FlexRule Open is a decision intelligence platform for business, operations, and IT teams in regulated enterprises. It supports visual and low-code modeling of business rules, decisions, workflows, data, and validation. Decision tables,…

Read the review →

DecisionRules is a business rules management platform for business and engineering teams that need to author, test, manage, and execute decision logic. Its visual Decision Tables, Decision Trees, Decision Flows, Integration Flows,…

Read the review →
  1. FlexRule OpenBusiness Rules Management Software 8.9Pricing on request
  2. DecisionRulesBusiness Rules Management Software 8.7Free plan · 14-day trial

Strengths and trade-offs

  • FlexRule Open — where it wins

    • DMN Conformance Level 3 with visual and low-code modeling
    • Simulation, debugging, and test scenarios for validating model changes
    • Cloud, on-premises, container, and serverless deployment options

    Where it doesn't

    • Pricing requires contacting sales
    • Integration coverage is limited compared with its deployment options
    • The feature set may exceed the needs of teams seeking simple rule automation

  • DecisionRules — where it wins

    • Visual tables, trees, flows, testing, debugging, and version comparison
    • Free plan includes AI Assistant, database connectors, and 1,000 Solver API calls
    • Supports public cloud, private managed cloud, self-hosting, Docker, and Kubernetes

    Where it doesn't

    • Free plan is limited to 1 user, 1 project, and 10 Business Rules & Flows
    • Lite starts at €291 per month or €3,500 per year
    • Premium pricing is custom and advanced security is reserved for that tier

More comparisons

All business rules management software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update