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Head-to-head · Business Rules Management Software

DecisionRules vs FlexRule Open

  • Updated Sep 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score DecisionRules #3 in Business Rules Management Software 7.8/10 Free plan · paid from €291/mo · 14-day trial Free plan✓ 4 of 5 features Visit DecisionRules
FlexRule Open #5 in Business Rules Management Software 7.4/10 Pricing on request ✓ 5 of 5 features Visit FlexRule Open

DecisionRules leads on 1 check, FlexRule Open on 1, and 4 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 scoreDecisionRules · 7.8/10
  • Free planonly DecisionRules
  • Most featuresFlexRule Open · 5 of 5

DecisionRules scores higher on our rubric for business rules management software: 7.8 against 7.4 out of 10; our editors rank them #3 and #5.

DecisionRules offers free plan; FlexRule Open doesn't publish it. FlexRule Open offers dmn support; DecisionRules doesn't publish it.

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

  • DecisionRules fits best

    Feature-rich teams wanting a free entry plan

  • FlexRule Open fits best

    DMN-focused hybrid deployments

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature DecisionRules 7.8/10 Visit ↗ FlexRule Open 7.4/10 Visit ↗
At a glance
Editor score 7.8 7.4
Ranking #3 in Business Rules Management Software #5 in Business Rules Management Software
Best for Feature-rich teams wanting a free entry plan DMN-focused hybrid deployments
Pricing model Free plan + paid Paid
Starting price Not published Not published
Free plan ✓ (best) Not published
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted, Desktop
Platforms Web Web, Windows, Linux
Support Tickets, Docs · 24/7 Email, Tickets, Docs
Built for Small business, Mid-market, Enterprise Mid-market, Enterprise
Features DecisionRules 4/5 · FlexRule Open 5/5
Decision tables ✓ ✓
Visual rule authoring ✓ ✓
Rule testing tools ✓ ✓
DMN support Not published ✓ (best)
Natural-language rules ✓ ✓
Specs
Deployment options Not published Hybrid
Execution access Both Both
Our review
Pros
  • 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
  • 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
Cons
  • 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
  • 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
Our verdict

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 →

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 →
  1. DecisionRulesBusiness Rules Management Software 7.8Free plan · paid from €291/mo · 14-day trial
  2. FlexRule OpenBusiness Rules Management Software 7.4Pricing on request

Strengths and trade-offs

  • 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

  • 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
  • DecisionRules7.8/10 · Free plan · paid from €291/mo · 14-day trial

    A feature-rich rules platform with a useful free plan and hybrid deployment.

    Visit DecisionRulesFull verdict →
  • FlexRule Open7.4/10 · Pricing on request

    A DMN-focused rules platform for teams that need modeling, testing, and hybrid deployment.

    Visit FlexRule OpenFull verdict →

More comparisons

All business rules management software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update